The problem is that the ring sizes aren't what I've tried before so some advice would be appreciated."the Mamba shape helps reduce erection strength and duration by allowing the deep dorsal vein and the superficial dorsal vein to do their work."
I usually wear 40mm rings. The one I'm currently in is 43mm but there is a reasonable gap when I'm cold and flaccid, enough to easily pull out (I know this is always a problem but it would be nicer if it were a bit more difficult). I have worn a 38mm hinged ring but sometimes attempted erections got very painful in the groin area and it felt like my blood flow was dangerously compromised.
So, my question is would a 38mm ring in this new design be suitable or should I just go with the 43mm one?
Link to product: https://www.aliexpress.com/item/1005002393279727.html