I have noticed that putting the Mutant to 4000, it seems to create a "lull" on the mid part of the lane. I would put it a 2000 and maybe let it sheen up a little, just wipe it down with a micro fiber towel for about 14 games. It been proven once you change a ball's surface, it takes about 14 games to get a true reading on the ball. best of Luck to you.
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RICK MITCHELL
COLONY PARK LANES NORTH
YORK'S RG/STORM GUY
"Give me ROTO-GRIP or STORM, or give me DEATH"