bronko22000
To be honest with you I hate all forms of Pyro... But to be able to shoot some Rende events it was suggested that I try Pryo - I bought RS and really had no problem setting it off, but if I were to buy more it would be "P" - I think it would burn cleaner and it certainly would work it's way out under the nipple easier. For hunting with a sidelock percussion I shoot T7-3f with #11 Mag Caps. I have not had any problem with that going off either. I did have problems with T7-2f in really cold weather but the 3f solved that problem.
Are your caps #11 or #11 Mags?
I guess I am also wondering about your nipple if you are not always getting the caps to ignite....