I purchased a like new Pedersoli Harpers Ferry 1805 pistol at auction. It is a beautiful pistol and displays well in my den. I'm not new to flintlocks, just new to this one. (I have a pistol with a Siler lock that is as reliable as the postman.) When trying to shoot the Harpers Ferry, it is: Clack, Clack, Clack, Flinch, Boom. I've tried a couple of different flints with no appreciable success. Does anyone have experience with this pistol? What works for you?