Have you tried moving to the right in heaver oil conditions and slowing the ball down a little?
If that doesn't work then you can always alter the surface with a 1000 grit abralon pad or a
500 grit abralon pad even. Then when you go back to the dryer lane conditions you will have
to polish it back up some or just go ahead and buy another heavy oil ball to start with if at all
possible. If you are really going to get serious about bowling then you will need a good arsenal
of bowling balls at least one for heavy oil, one for medium oil, and one for dryer lanes and maybe
a plastic ball just for spares.