From my experience, I get maybe 1-2 ft more skid on my Pearl & resin equipment. My partical equipment doesn't show any change in length. What I would do is try the ball out on lanes without using the elixer to establish a bench mark. Then clean the ball, apply the elixer and test the shot again. If your length increases too much, remove the elixer by taking the original surface down by 1 to 200 grit (ie, 1000 to 800), then reapply the elixer.
Another little trick I learned is after about 30-40 games, just reapply the elixer to the ball track instead of doing the entire ball. Makes the elixer last a lot longer.
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~~~SrK - Have balls, will travel
Spending the kids inheritance one tournament at a time.