http://ccv.northwestcompany.com/bsa.htm
I'm making them like the above tied version with some changes.
For paper I'm using the brown paper towels that come on a roll with the bumps on them like you'd find in a public rest room.
For my .715 ball in the .751 bore I'll cut the towel into 4 7/8" lengths. Fold over 2" on a short side. set the ball on a 3/4 dowel 5/8-3/4" in from folded edge to end of ball. Roll and tie as per above.
This will give about 1/2" of toweling over the ball. Flatten down against ball loosly and fold in towards the center the part that sticks past the ball dia.
Melt your 2 pts OL to 1 pt BW mix and dip only to where the ball / stick joint is just above the ball. Finger form towel end for neatness(?). When cool quickly redip to build up more lube without melting previous layer (chilling in refer helps).
I use unraveled Jute string for tying.
Before build up of lube my carts are around .740 diameter. After lubing, .78/.81.
When loading you'll shave or swedge some lubing and if you pull the load you'll see the paper is making fair contact w/ bore (Think the lube is swelling up the towel).
All that extra paper you added overtop the ball is acting (sorta) like a wad when seated and seems to be helping to seal around the ball as whitnessed by the plugs found on the ground after firing.
I've fired a 20 round string without having trouble loading. The generouse lube is keeping the fouling soft and maybe contributing to sealing when the new load is driven home.
Admittedly, this is still in the development stages. I've not gotten to the point of a "good powder load" at this point. Going one step at a time, first something that loaded, then something that held up to 120 gr. 2Fg.
The Jute is like a good bore scrubber ahead of the ball, but, it maybe deleted behind the ball for something that'll fall apart more easily (cotton thread?).
Besides the powder charge, I'm not set on if and how much towel I may leave over the ball when loading yet either.
Well, that's where I'm at on the subject.
Hope something in here gives you some ideas to combat your fouling. :hatsoff: