Mr__
Member
I can not personally use the vacuum cups you are talking about. The biggest one they sell from these companies have an inside diameter of 42 mm (~1.65") that will not work for me.
But I'm happy some men can use them. Just really strange they only have 3 sizes of these cups. But I'm not sorry. I have the LengthMaster 3.0, and it will give me all the lengthgains I need.
The problem is not that the cup is too big when I'm putting it on. Its more with the gap created between the cup and the sleeve/shaft because when youre stretching your girth is thinner then when its in a normal state.
So when I'm putting it on everything is pretty snug but once stretching the gap between the lip of the cup and shaft becomes bigger which tends to loosen the grip of the sleeve.
I was thinking maybe just a tighter sleeve and not a smaller cup is needed.