First thing up front, if it works correctly, Leave it Alone. Doesn't matter how hard the
frizzen opens or closes, or the flint hits, etc., if it is a Balanced Lock.
I have some that cock pretty hard (Chambers Custom Siler) but it Really sparks
I have a little MG lock that a small child could cock & fire & it sparks like crazy too.
Dif. locks, dif. mechanisms, dif styles, dif hardnesses of frizzens, vs angles & cock thrust, etc.
One thing I will mention tho. DO NOT dry fire the lock without Something hitting the frizzen.
That is a sure fire way of damaging the lock. Always have a flint, wood wedge, eraser, something
to hit on that frizzen when you fire it. Otherwise you can fracture the Tumbler Shaft & you cannot
See that untilthe damage is done & the lock fails.