OP- You've got some great advice already on this thread as well as the link to the other She-P thread.
My first two attempts at the She-P resulted in my butt cheeks getting glued together, I kid you not. The wonderful She-P pioneer divers here helped and I took bits of advice from each of them.
I no longer apply the Urobond IV directly to me. I don't shave the morning I apply the She-P. I do shower in the morning to remove any oils or what nots in that area, dry off completely before applying She-P.
I apply two layers of Urobond IV in the morning to the She-P and let it dry as I do my morning routine, brush teeth and put in my contact lens. Glue is usually dried by then.
I use a deeper squat stance while placing my middle finger in the middle of the back portion of the She-P, I guide that middle finger to the area between the anus and vaginal opening. Once that is secure in place, I lessen the depth of the squat by almost standing up while I use my index and ring finger to run along both sides of the She-P until it is all in place in the front.
As Kathy stated, which I also do, after 2-3 days of usage I do clean off the glue buildup in the She-P and start with fresh glue again for day 3-4.
I just finished a week of cave diving in FL yesterday and had no leakage all week. Some days I had the She-P on for over 12 hours at a time with no problems.
Hope some of helps. Good luck and keep us posted.