ebonite particle polish, it makes the ball glow but leaves the surface super tacky, its the only stuff Ill use now.
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"I don't like country music, but I don't mean to denigrate those who do. And for the people who like country music, denigrate means 'put down'" - Bob Newhart
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If guns kill people then spoons made Rosie O'Donnell fat!
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Some people are like Slinkies....
Not really good for anything, but they still bring a smile
to your face... when you push one down a flight of stairs.

Duke, & Sixcranker,

With regard to Magic Shine, I haven't found that yet, but what I will do often, depending on the ball and the stock finish, is to sand it duller and then add polish. Many, many times, polish on top of the stock sanding makes the ball go too long. I do not know if that is the basis for what you saw.

For the Delta, I'd suggest sanding to at least 600 grit before applying Magic Shine. Possibly, sanding it to 2000 grit or even 4000 grit might be an alternative strategy.

I no longer use Black Magic for the same reason: on top of any sanding, the least little bit too much polish and the ball has a significantly reduced backend, almost like car wax.
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"None are so blind as those who will not see."