I don't think your problem is the amount of lube, its the amount of powder. Try using half charges of 2F and you will be able to shoot all day again.
Years ago I bought my first jar of Wonderlube and I was using about 80 grains of 2F, thinking no cleaning was needed I almost got a ball stuck on about the fifth shot. A few weeks later I ordered some prelubed Wonderlube patches from Ox Yoke. Included in the pack were some instructions that are missing from the jars. Simply put, they said for all day shooting to use lighter loads of powder.
I did and now no matter what the granulation of powder, as long as I'm using half or slightly (emphasis on slightly)larger charges I can shoot all day without cleaning.
I think the larger charges of 2F just leave too much fouling for the Wonder lube to handle without cleaning.