OK Dirty Dan

They’re full brass. I have a pair of these on my main match guns. They come intentionally oversized so they must be fit to your frames. I really like mine but I don’t put the effort in to keep them as shiny as that picture.

I’ll take them. Sending you a PM.

Are you using a combination seat/crimp die? This has happened to me before when I have the die body screwed too far down such that the crimp starts being applied before the seating action is completed. I still use the combo dies but I make double sure they're backed off enough not to crimp, and I then crimp in a separate station.

I would definitely suggest going with a lowered hammer if you have difficulty reaching the spur without rocking the revolver. I say that because one of the main things I see from other duelist shooters which costs them time on their pistols is turning the hammer cocking motion, which in my opinion should be a thumb-only movement, into a full hand/wrist movement. That time with your gun off-target to cock the hammer adds up. But mostly, as you say, it's practice. That can be practice dry firing and transitions at home, or live fire at the range. Transitions are key for every category so I'd spend some time at home getting comfortable getting the first pistol back into leather (without looking it in) at the same time as you're pulling the second from leather and getting it on target. That will minimize your pistol-to-pistol transition time and also allow your dominant hand (I assume every double duelist generally shoots dominant hand first for transition reasons) to move onto the rifle/shotgun earlier therefore minimizing that transition time. Edit: Just realized I was assuming you're shooting double duelist. Maybe you aren't. Whether you are or not, still practicing in and out of leather will be of benefit.

Natchez has Remington #10 caps in stock. 100 count for $9.99 before shipping and hazmat. In case anyone needs them...Remington Percussion Caps #10 - 100/ct (natchezss.com)

I'm in for CCFCGF as well. It'll be a hoot!

Surely @Missouri Lefty will join us again and whoop us even worse shooting in Gunfighter.