I use to have very good success with mine on a med. oil THS on AMF synthetics.  It is supposedly a med/light oil ball it was less agressive than the orig. eraser, I did have both.  I can't remember how mine was drilled though sorry. Just slap your favorite drill on it that works for your game its a great ball.
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I should just quit bowling, oh wait I already tried that.
Now that I am back and my Saws are sharp again, I am ready to cut some wood.

Overall reaction should be less # of boards from the blaze than the x-factor is drilled alike. The X-factor has a stronger core but the covers are similiar both being accutread based.  I think mystic pearl is stronger than the the cadmium pearl they used on the blaze which was an accutread based light load particle/pearl.  I would like to hear from a storm expert on the covers though as to which is actually stronger.  My X-factor was longer and more flippy than my blaze.  The blaze was smoother and more even, again I don't remember drills on either one, I do know it was nothing exotic and of course coverstock is the main part of a balls reaction anyway.  I remember my blaze though it hit like a truck I was very impressed with it.
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I should just quit bowling, oh wait I already tried that.
Now that I am back and my Saws are sharp again, I am ready to cut some wood.