DP3,
I've had an Inertia now about 3 weeks. I laid it out pin next to right and above ring 75 deg. layout MB right of thumb 1.50"s. I am a medium speed tweener. Bought it for a THS that can be slightly over/under side to side with fresh backends that carry down after game and a half....lane surface Brunswisk Anvilane both first and second generation. 1st generation is worm more in the track area.
Tried it OOB but found it to squirty. Then, I tried it 2000 abralon which calmed it down very nice strong arcing ball. Now, I have it at 500 grit sanding lines w/ track with a slight amount of polish. <I find that for me most abralon finishes don't hold up all three games and pick up lane shine after 1st game.......I also keep an RG Saturn this way.> Best finish that stays that way are low grit finishes with a slight amount of polish over. I think, I like this finish the best for the Inertia for my technique, ball speed and lane condition. It cetainly makes the ball fit my game really well. Very nice strong arc and great carry.
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Scott