Well, partial success, partial egg on my face.
Mistake 1 - Only took the guns out once to shoot before competing. Normally I'm a little smarter than this. I was overconfident in my ability to roll with any problems and keep going. Shooting black powder rifles IN NO WAY (other than the very most basic) prepares you properly for shooting cap and ball revolvers. Whole new ballgame. I didn't test my gun enough with the percussion caps I bought vs. the ones I had leftover from shooting rifles. The rifle caps I used at the first shooting worked nicely. The ones I bought specifically for the handguns were crap. They didnt fit. Fell off, crunched up and blocked the actions, 4 misfired and got the balls stuck half in and out of the barrels. This last was more than likely my fault, I think perhaps I didnt seat the balls well enough this time (excitement partially, and being rushed in the loading because of being in competition). I had approximately 5 minutes to load both revolvers, a rifle, and load up on shells for the shotgun. Measuring powder and loading up wads and balls into the cylinders, then seating 10 of those percussion caps in place took more time than I realized.
Mistake 2 - I had made plans ahead of time with one of the members to borrow drop in conversion cylinders in at least 1 of the guns, meaning only one would be really "experimenting". This gentleman was also providing me with extra ammo, and if necessary a gun to replace my other pistol in case of problems. He is experienced shooting cap and ball, and I was relying heavily on borrowing from him, both in equipment and in his knowledge. He couldnt make it. I found myself short of guns, short of ammo (because I only bought and brought what I was told to buy and bring), and woefully inadequate to deal with the problems I encountered. Which again goes back to lack of prep. I relied too much on what someone else could bring to help me, and not enough on myself to be properly prepared. Lesson learned.
Luckily these folks are very generous, and some of them stepped up to let me borrow what I needed to finish the competition. Even considering I had to take 13 misses on the first 2 rounds because of gun malfunctions, I still placed 24th out of 30 competitors. At least I wasnt last!

And for the ones that DID fire.............
There is nothing in the world like being sprayed with burning chaff when that cap explodes, and the big cloud of smoke that makes you look like a low-flying cloud.
I love the smell of black powder in the morning!
Now if I can just get lead balls with fuses that explode like cannon balls.............