Back 100 years ago when I used my T/C Hawkins - powder + patched ball - then a drop or two of oil on top of the ball ----- never had a problem --- right or wrong - it worked for me
With my new pistols -- powder + wonder wad + ball -- whatever lubrication there is - its behind the ball ?
What I'll probably do is -- either drop another wad on top or just a bit of bore butter --
