I have been shooting flintlock for many many years and still look for ways to improve, ignition and fast ignition in particular ,are some of the things I look to tweek. If you read "Muzzle Loading Shooting and Winning with the Champions" by M.Vickery, W.Terry, B. Butcher,D.Davis,W.Grote,B.Charmichael,P. Allen and W.Boughton page 29 they reference the very thing you speak of wiping flint and frizzen. They recommend doing this between shots to reduce hang fires. At the club I shoot one of the shooters there brought to my attention wiping. I have been wiping for some time and will continue to wipe between shots . It does help, and so I have my daughter wiping between shots also. I also do not pick (white lightening touch hole liner) this past shoot I shot 50 to 70 shots no hang fires. Steve