Hello, I seem to have found the solution to my problem in both the flint locks and cannons of various sizes. While I actually started swabbing and relubricating the bore, this seemed to make it worse. I called around until I spoke with Track of the Wolf, Dixie Gun Works and finally, Steve at Slip 2000. Make a long story short I was using Motor Oil for lubrication which apparently in the black powder world is a no-no for firearms. I had read it worked well for preservation, lubrication, that it was long lasting etc but where I had read it was not talking about BP and muzzle loaders. Of course, as it was explained to me, motor oil when it encounters combustion and more importantly explosion and deflagration like you see with BP tends to burn just like it would in your car's cylinders. This leaves even more fouling behind and makes the BP fouling 5x as bad. This is why it took me 3 hours to clean my flintlock. Well that and I wasn't using the proper equipment, a problem that I have solved.
I am still improving at this but I can now do a very thorough cleaning in a little over an hour. I guess Schutzen in my experience has had the least fouling but it wasn't the powder, it was the oil. Seems like such a dumb thing, I guess 99% of the others on this forum already knew that but I did not and it made life miserable for me. So for the benefit of any future searches about unreasonable amounts of fouling leading to unreasonably long cleaning times, even for BP, look at buying proper cleaning equipment instead of using paper towels, even for cannons, and use proper biologically based (as opposed to more combustible under deflagration petroleum products) lubricants. OK, I know petroleum is a fossil fuel and therefore biological as well, but I mean directly biological, not separated by 60 million years.
Again sorry for the really stupid question, but if you don't know and no one tells you, how can you tell if you're making a mistake?
Best
P