Sounds as if you should have listened to "The Master" at LEGENDS (Galen); I too am a hi speed/low revs bowler and for me, he said that I should try to keep the pin at finger level or below (of course, he always considers my PAP of 4 3/4 and 1/2 up.
I would call him again and speak with him a bit more; you can "glean" all of the well-intended advise that you want in here, but he's you BEST BET !!!
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Man, I LOVE this game; and I love it even more now that I'm using LEGENDS/LaneMasters balls ... hard-hitting, TOP-NOTCH balls !!!
Robb in O'Fallon, IL 62269 (near Scott AFB)
LAYBZZ74@AOL.COM