I'm trying to figure out how deep to cut to allow larger sounds. I can get an 8mm in my cock now but 9mm is a no way. Do I need to cut all the way to the "ring" inside or what. All comments and help would be appreciated.
Normally there is a restriction at the end of the urethra near to where the corona of the head is. This is probably what you are having an issue with at present, slowly trying to stretch it is one option but for the bigger sounds you wish to use it will have more than likely have to be cut.
I can insert 10mm with out cutting. When I started it was 6mm.
my cock is 6 inches hard I can insert up to 8 inches deep. It feels
wonderful. Keep trying and go slow.
I have a small cock and I started with a 6mm and am up to an 11mm without cutting. After all, half the fun is playing with it and the pleasure when you move up to the next size!