RE: Some GPR Homework
"Muzzle loaders are addictive - sidehammers more so - flintlocks may require intervention by concerned friends and relatives. "
You've got that right. I haven't had my centerfires out since last year and then it is only for a quick zero check. I find myself using the ML's more and more often.
I also have a RMC vent liner installed. Flint life seems to vary. I had as few as 5 shots to as many as 40 on a single flint. On average I would say about 25 shots per flint. I still haven't gotten the knack of knapping them without shattering them all to heck.
Funny thing today is I felt like I shot better with the single stage trigger than the set trigger. I think the trigger pull is about 15 pounds on single though. lol