I have a RMC flintlock with 1/28" barrel, L&R lock, fitted with a single trigger. Trigger pull was always very good- (2 pounds) best single trigger I've ever seen on a flinter. Stock is a laminate that cracked through the wrist two years ago. I repaired it, but never really trusted it. I finally found a new factory replacement stock, but now I have a trigger problem. When i assembled the rifle in its new stock, the trigger pull seemed light-almost like a set trigger. Cocked and pulled the trigger several times and now the rifle will not stay in the full cocked position. Anybody know what is causing this problem? I have a couple of double sets in the shop, but don't think I can fit them to this skinny straight grip stock.