I started out with percussion and cap n ball guns.
Your statement could not be more wrong. There are at least 4 variations of fake black powder. Pyrodex is only one. It is a tested fact by me,, and others that None have the efficiency, lock time, consistency, or the easy non corrosive cleanup that black powder does. Even the relatively dirty brands like Elephant, Ludic, or whatever from Mexico and the Chinese powders ...out perform pyrodex and triple etc. A huge plus is all the fake powders have a shelf life. They expire. Black powder if kept dry etc, has an indefinite shelf life. That is a huge plus for me, and most of us.
My personal opinion and only an opinion, the fake powders and pellets belong not to muzzleloaders, but to modern firearms. They are a class by themselves. Fun to shoot, and have their use, but not muzzleloaders per sec. Just because it's a front stuffer does not necessarily make it a muzzleloader.....but that's just my opinion.