RE: how long have you been using one
First percussion experience was with an original Remington New Army 44 revolver that was junk and I rebuilt it to shoot. That was about 1960. Since then I took a break and started again in 2000 with a T/C Scout in .50. Killed first elk with that rifle. Sold it to buy an Omega .50, got the bug and bought a .50 Traditions Pursuit LT (bad idea) traded it for an NEF .50 Huntsman, bought a .58 T/C Hawken used, bought a .50 GM barrel for same rifle, bought a Lyman .50 Trade Rifle in Flintlock, bought a White 97 in .504, bought another White 97 in .504, bought an action for a White Thunderbolt and had a barrel installed by Doc also .504, Bought a Knight KRB7 .50 ,just bought a White Ultra Mag in .504. Probably two favorites will end up being the KRB and the U-mag. Have to do a lot more shooting before making any real decision. They are all fun but unfortunately not enough time available recently to shoot them all.