ben
You can also 'tune' your wad punch to make the wads slightly larger if needed, by enlarging the inside of the punch with a Dremel tool and stone. Care must be taken to not go too far. Just try fitting a new wad in the cylinder, after each little bit of grinding, until you get that perfect snug fit in the cylinder without the edge curling up. Also try to keep the punch opening round. Felt is pretty forgiving though.
I'm a fan of GeoJohn...powder, dry wad (homemade wool from Durofelt), fingertip of Gatofeo #1 and then the .451 ball. Not messy ( wads or grease) and fowling seems OK. So far no need to change, although I have purchased a box of .454 to try, and I will continue to experiment.
I hope I can aviod a chain-fire, but I make myself expect one each time I fire, just in case.