I did a TC Hawken percussion about 30 yrs ago, I enjoyed the challenge. It is fun to shoot and fairly accurate with ball and black powder. If I recall, I used between 90-110 of 2F. Have never used pyrodex. If I am going to use a "primitive" weapon, I want the real mccoy.
Knowing how nasty black powder was, I used tung oil on the stock. I am glad to say it has held up very well over the years, thru MANY cleanings.