FWIW (from the guy who at one time or another purchased just about every prosthetic out there) is that the glue isn't really a good option for play anyway.
1) It's time consuming. You have to shave your pubic area, wash (shower), apply an alcohol prep, apply glue to the prosthetic, wait a few minutes, and hold it on until it's attached.
2) When actually playing (ok, I haven't used any with a partner, but I can j/o or use a fleshlight or what have you) the cock, even if appropriatly attached (it did stick for me) when you lean forward, the whole thing falls forward so the balls are far away from your body. So when you are um, thrusting, all of the action is on the skin above your junk, not on your junk, unless you are fully in. Not very stimulating or realistic IMO.
3) The nice play prosthetics are way too big to pack with unless you are going to a club where you are expecting some action.
4) Having to remove, use a foul smelling remover, clean, shave, etc. over and over, it's very annoying.
FWIW I did get the smaller prosthetic to stick just fine, and it would stay on for 4 days before needing to be re-glued. I wore it daily (24/7) for 3 months. Let's just say it got very old.
That said, I still have a Like Real and an FTM Prosthetic from Australia which I do use for play, but just use a regular harness or jock strap. The tab makes those work better than a regular dildo from an adult store.
All in all, by trying out all of the options is what cemented the deal that for me I just need to have lower surgery. Prosthetic options didn't work well for me.
Jay