Measurements against CB6000s

[CuriousGeorge51]

I currently have a CB6000s and am ready to purchase a Jailbird from Mature Metal. I was wondering if anyone else had made this upgrade and if they were able to use any of the CB6000s measurements when making the jailbird purchase. I am currently using the 1 3/4" Ring, 3/8" gap (but am able to use the 1/4" gap), am only filling the 2 1/2" length with 2" of length at my smallest size and the 1 3/8" Cage Diameter. My question is whether there is a difference in switching to the Jailbird and if the measurements are comparable. I have a 1 3/4" steel cock ring and can just get my balls through the ring and I can sleep all night without any problems. I was able to fit the CB 1 5/8" ring on but I noticed more discoloration and I doubt I could fit my balls through a fixed ring that size in the Jailbird.
Any help would be appreciated since I am really anxious to be making the purchase ASAP. Mature Metal's fitting info suggests most people use the 3/8" gap and that might be a difference in the design of the 2 cages whereas I might be able to use the 1/4" gap with the CB device.

[Locked by LRC]

It's the same only different. Look at the MM site to see their recommendations for measuring. I would highly recommend to use their guide when ordering.

When I got my first MM device it was too long. I filled the CB6000s to the end and was sure this was the length I needed even though MM measurement guide said to get it a 1/4" shorter. My next MM device was shorter.

I would recommend starting with the 3/8" gap. Again, I made this mistake with my first device. I was able to wear the CB with just the KSD as a spacer, about 1/16", because I hang low. I ordered the MM device with a 1/4" gap. Within a half hour I new something wasn't right.
Closer examination of the CB device showed why. The MM device, with screw, is very solid and there is no movement. The CB device moved significantly vertically. When measuring I found the gap at the bottom of the CB would change almost 1/2".

[all41]

I believe with a 1 3/4 oval ring (Oval is a must IMO) no testes slipping through and a 1 3/8 cage with a 1/4 gap you will have a blood flow problem... 3/8 gap you might get away with it. I prefur the 1/4 gap

I have a 1 7/8 ring 1/4 gap 1 3/8 cage fits tight and no blood flow issue

cage length, I would split the difference between shortest length (cold) and normal

If you fit your 6000s diameter with out stuffing it in with a Q-tip, you might want to go down a 1/8 inch due to the open design of the jail bird

I can only speak for the 1/4 gap but from what I read in your post the smallest I would go is 1 3/4 base ring 1/4 gap and 1 1/4 diameter cage. for me I need a 1/2 inch difference between the diameter of the cage and the diameter of the base ring with a 1/4 gap

hope this helps... all4one

[adso11]

Hi, I have a similar question. I have worked myself down to using the 1 3/4" A-ring on the Cb-6000s and the smallest (1/4") spacer. With the next spacer size up, I have had ball slippage issues, though it is just one that slips as it is slightly smaller than the other. It can be tight at times, but it's manageable.

Now my wife and I have been talking about getting a Jail Bird or Queen's Keep. I've read that Thumper suggests going one ring size down on the metal devices as compared to the CB; my concern is whether there will be sufficient space if I downgrade the ring to 1 5/8" and keep the 1/4" gap and also whether getting the oval ring will compound the issue. Any suggestions? Thanks!

[Locked by LRC]

Welcome to the Forum adso11.

When ordering a custom device many recommend getting the size ring you feel comfortable with and a second ring one size smaller. Even if the larger ring is correct, after time your body may get used to it. At this point many will step down one size.
If after you get the device and then decide you want a smaller ring, you have to send the device back. One of the downsides of a custom device.

I would also recommend the 3/8" gap. MM, or possibly yourself, can easily adjust it smaller. The reason for not using a smaller gap with a custom device is because the gap will be solid and not change. If you are ever lucky enough to get your CB off assemble it with the lock in place. Hold the base ring solidly in one hand. Holding the tube in your other hand, move the tube up and down. The movement you see will not occur with a custom device.

[adso11]

Thanks Locked! MM also suggests the 3/8" to start with so hopefully that will work out. I really would prefer not to pay extra for another ring, but you're probably right that it is the safe way to go.

[adso11]

Also, I asked MM about this as well, but I thought I'd get an opinion from other wearers as well: on cage diameter, I come out on average right between 1 1/8" and 1 1/4" for a tight fit so that I cannot really choose between the two. Is it preferable to go with the bigger or the smaller measurement?

[chastehub]

i was in the middle ring of the CB6000 (1 3/4" by my measurement) and small spacer (1/4" by my measurement). i thought i could go a little smaller, so i ordered the 1 5/8" oval basering and 1/4" gap. For the internal diameter of the tube I used the same dimension as the CB6000 (i don't remember what that was). The folks at MM talked me out of the 1/4" gap for the reason @Locked_by_LRC mentioned: there is no flex in a metal device. i ended up going with the 3/8" gap and have been very happy with that.

The JB basering was snug but comfortable (no issues with adema, etc), but the smaller basering made getting my nuts through the ring quite challenging. Also, i started to have issues with "hot spots" occurring around the basering and was convinced it was too tight, so i had MM resize the ring to 1 3/4" (my CB6000 size). It is very comfortable now, although when i first started wearing the larger ring i still had one hot spot. Despite no visible defects, i took a wire brush to the device and either that smoothed things out or served as a placebo, because i've had no issues with hot spots since.

The JB is now extremely comfortable and getting my nuts through the larger ring is easier (although not a piece of cake). However, I discovered the other night that i can pull out (and get back in) with little difficulty, so i wish it was more secure. i don't know if my "hot spots" were truly due to the ring being too small, or trouble with some minor invisible defect, or just issues with getting used to it. One part of me is tempted to try the smaller size again for security, but even then i don't know if that would solve it. There is also the double basering option and the anti-pullout pin option. So many choices!

For now i'm just enjoying being locked 24x7 and operating on the honor system regarding pull out. I will worry the security questions later. It is a unnatural to lock a hunk of metal onto our junk anyway, so i guess that is why it is such an inexact science with few perfect solutions.

[LongTimeComing]

Sizing wise I think you have had some good advice. I went from CB6k to a MM QK and comfort wise haven't looked back. There is one issue with my QK that I will share: I got a non-padlock one and opted for the security screw. Which is fine but. The surface are available to the screw's flat head on the cylinder is inadequate. The screw can only make contact on 2 small points and it comes loose and even off it you're unlucky. This is a pain in the r.s. for both you and your KH.

I have almost solved it by (a) ensuring the QK has been cleaned of all lube before being applied and (b) I added a spring locking washer to the screw.

If only MM would just tweak the design so that the screw's head surface area could be applied in it's entirety, this problem might just go
The other thing that'd help would be a locking washer that is a part of the screw (can't get lost) and also make it slightly longer so it compensates for the washer.

In the mean time I have other ideas for dealing with the fact that most men do not have identically sized testes.

I haven't had the pleasure of a Lori (yet) so I don't know how they stack up in terms of security. Price-wise there's not much in it. One boon for MM is that the delivery leadtime is waaaay better than some of Lori's popular models.

[locked4her55]

If only MM would just tweak the design so that the screw's head surface area could be applied in it's entirety, this problem might just go
The other thing that'd help would be a locking washer that is a part of the screw (can't get lost) and also make it slightly longer so it compensates for the washer.

Have experienced the same problem and have since gone back to the padlock.

My idea was to have the entire head of the screw, when secured be recessed into the body of the cage. Maybe that would work along with your attached locking washer idea.

Ahh, all to build a better mouse trap.