Getting the Sizing Right - A Cautionary Tale

[WifeIsVanilla]

Mistake # 1
At 4” flaccid and a little over 8” erect, I made the mistake of choosing a Curve as my first device. Because I have fairly low hanging testicles, the base of the cage did not start enclosing my penis anywhere close to its base, so I did not come close to filling up the device when flaccid. When aroused there was plenty of room for an erection to start, but if I did not stay well lubed, the sides of my penis would grip the plastic and push the device away from my body, pulling on my testicles and irritating the heck out of the bottom of my scrotum.

When recently, adequately lubed, I really did enjoy the sensation of my erection being forced downward by the shape of the Curve, but I needed to lube frequently. Also, no amount of lube or lotion I would use would help the irritation at the bottom of the scrotum so the longest I could wear the Curve was a couple of days, and then I would need a few days of rest.

Mistake # 2
It seemed to me that, if I got a stainless steel device, there would be less friction as the erection pushed down the tube. Even so, it was clear to me that the Curve’s 4 ½” cage length was way excessive so I ordered my Mature Metal Jail Bird with a 3 1/2” cage.

When I received the JB, I loved how it looked but was very disappointed that I could not wear it for more than a few hours because of severe ball burn at the bottom of my scrotum. Mistress Mature Metal advised me that the most frequent cause of that problem was too small of a gap between the cage and the base ring. Owning the Curve had taught me the correct base ring diameter and allowed me to get the inside diameter of the cage right, but I had not bothered to measure the gap that worked for me with the Curve and simply ordered the standard 3/8”. Doh!

Fortunately, MM only charged $10 (including mailing) to adjust the gap and make the oval ring round, just in case its oval shape was contributing to the ball burn. The only problem was that I was without my beautiful JB for a week. Four days of that was mailing back and forth so I was impressed that MM turned it around so quickly after receiving my device.

And then I discovered Mistake # 3
After I received my JB back, ball burn was no longer an issue, and I was able to wear it longer, including sleeping in it. But, I discovered that I still had the same problem of the device being pushed away during attempted erections, especially the night time ones. While there was indeed less friction than with the plastic tube, I had not counted on the erection encountering the end ring of the JB with the same result as with the Curve. Damn!

After further email correspondence with M MM, I learned that the size was not going to be right unless my tip and sides touched the device at virtually all times. To quote M MM, it needs to be a glove like fit. How right she was. While the experience I had before was very good, so much better than plastic, my current experience is exquisite.

Reducing the length of the cage costs $100 plus $10 mailing and was worth every penny. Save your self money and aggravation. After experimenting with a CB or other plastic / silicon / off the rack metal device, get a custom device, but when ordering, read and follow MM’s sizing guide carefully.

[knighterrant]

I like this post. It seems the process of getting adjustments is both complex and time consuming. I suppose real chastity and denial doesn't even start until you "Get the Sizing Right".

[_lj_]

Just to agree that sizing is vitally important - MM's instructions are to measure several times and take the average, always when entirely flaccid and relaxed.

The whole point of this is to make sure the cage snugly encloses the flaccid shaft. If you start an erection all that happens is it firms up a bit, but the cage prevents any expansion, so the shaft stops trying and kills the erection in its tracks. This stops the painful tension on the balls that is characteristic of the ill-fitting one-size-fits-nobody devices.

I speak from experience with the CB3000, CB6000s and the JailBird, the latter being correctly sized and comfortable all the time, unlike the other two which were dreadful !

[Locked by LRC]

...when ordering, read and follow MM’s sizing guide carefully.

I think, the most important thing you related.

This is true for any custom device maker. Follow their instructions for their design.

[boyfox69]

Wife Is Vanilla, how did you go about getting the correct diameter of the cage? Did you order the same diameter as flaccid or the next size smaller?

[WifeIsVanilla]

I lucked out on the diameter. The length of the first device I purchased (the Curve) was waay too long, but since it was transparent, it was easy to tell that the 1 1/2" diameter was fine for me. I could see that, while flaccid, I was touching all the way around the circumference. So I ordered the same size.

[nebman]

Experimenting with my cheap Chinese metal device, I reduced the caged by inserting a hairspray bottle cap, reducing the length of the cage to 1 3/8 inches long by 1 1/4 inch diameter. Cage length does not include gap or A ring in this example.

I am maybe a bit too squished in, but as others have reported, with no room to expand in the cage, night erections have been much better.

I think the tendency to make cages too long is one of the biggest cautions.

[doc9000]

I think the tendency to make cages too long is one of the biggest cautions.

It's taken me several devices to realize how short a device has to be for me to be comfortable in it on a 24/7 basis. Maybe the problem is with "growers" like myself who exhibit a very large size difference between totally relaxed and erect.

I would characterize my penis has having three distinct stages:
--totally "relaxed" (shrunken)
--flaccid but extended
--erect

In my case there is a couple of inch difference between #1 and #2. Using guides like the one on the MM website resulted in my buying devices sized for #2 ("measure your length when soft but not shriveled") but those were always too long and I would often get painful nighttime erections which would put intense pressure on my balls.

On a whim I bought an inexpensive Chinese cage which I think was sized for ~33mm. At first it seemed really short, but, actually, in my #1 state I have about 1/4" space to the end of the cage. As soon as my penis tries to go to state #2 it is stopped by the cage before it gets very far. As a result it has practically no ability to attempt an erection even though psychologically I can feel the "need" to have one. This results in a much better night's sleep.

I'm glad to see discussion like this because I could have saved myself lots of effort and $$ had I known this when we first started playing with chastity and I hope others will benefit from reading this.

[TwistedMister]

I hear you on the difference between #1 and #2.

[nebman]

I think the tendency to make cages too long is one of the biggest cautions.

It's taken me several devices to realize how short a device has to be for me to be comfortable in it on a 24/7 basis. Maybe the problem is with "growers" like myself who exhibit a very large size difference between totally relaxed and erect.

I would characterize my penis has having three distinct stages:
--totally "relaxed" (shrunken)
--flaccid but extended
--erect

In my case there is a couple of inch difference between #1 and #2. Using guides like the one on the MM website resulted in my buying devices sized for #2 ("measure your length when soft but not shriveled") but those were always too long and I would often get painful nighttime erections which would put intense pressure on my balls.

On a whim I bought an inexpensive Chinese cage which I think was sized for ~33mm. At first it seemed really short, but, actually, in my #1 state I have about 1/4" space to the end of the cage. As soon as my penis tries to go to state #2 it is stopped by the cage before it gets very far. As a result it has practically no ability to attempt an erection even though psychologically I can feel the "need" to have one. This results in a much better night's sleep.

I'm glad to see discussion like this because I could have saved myself lots of effort and $$ had I known this when we first started playing with chastity and I hope others will benefit from reading this.

Excellent post, and very much my experience as well - except I'm still playing with the first $30.00 device I bought. The shorter cage is also a lot more practical for hiding under ordinary clothes. I would love to move to a Mature Metal, and I think I could get the sizing about right after a year of experimenting and customizing my cheap device.

The many 2 1/2 inch to 3 1/2 inch cages for sale on the CF Marketplace are testimony to how State #2 as you put it results in too long a cage.