Preventing ring slippage

[Shepherdsflock]

Any advice on how to keep my ring from slipping down my scrotum when my penis tries to get erect?

I essentially end up with a full erection only with my balls pulled clear up my shaft.

If it helps, I'm wearing a Holy Trainer V2, size small with 40mm ring.

[knighterrant]

This is partially governed by personal anatomy of the scrotum. The generic factor is only fit in my opinion. The most restrictive fit possible that restricts erection immediately reduces this effect, I would think in most everyone. Hence it leads to a discussion of pro's of custom fit devices.

[nebman]

I also have worn a 40mm ring, small by a lot of people's standards. I did find that a smaller ring helps reduce slipping.

I've experimented with two cage sizes, one too big (dangle in it when flaccid), and another too small (always squished in). I found the too small cage to have more problems with slippage.