I have just bought a GPR flinter and would be grateful if you guys that own or have owned these rifles could give me some tips to make this rifle a dependable as possible.I have ?s like should I change the locks as ive heard that mentioned about other fifles before.How about triggers,mine is 50 cal whith the slow pitch rifleing for PRB.This will be my first finter and I know Im either in for a real trick or treat. ( pardon the pun )