Be careful with the striker sticking on the Black Diamond. After about a dozen or so shots (particularly with Pyrodex), enough powder residue will build up around the striker to sometimes cause it to hang up. This happened to me last year - pulled the trigger - nothing happened - thought I must have put the safety on - as as relaxed and looked over to see if the safety had become inadvertently engaged, the gun suddenly discharged. It was pointed downrange, but not held very securely and scared the cr*p out of me nonetheless.

I now pull the striker back and forth a couple of times after each shot to make sure it isn't getting sticky.