Doug, have you tried Neo Tec's "Liquid Nitro" Ball Cleaner. I've been using it for about 4-5 months now with no problems. Jeffrevs swears by "Liquid Nitro" also. I clean my balls with it after every bowling session. A number of people I bowl with use it with no problems on Brunswick, Ebonite and Storm balls. I used Hook-It on my Blueberry the other night and my towel came off clean whereas most people you talk to say there towels come off black, gunky, etc. I attribute this to the use of "Liquid Nitro" after every bowling session.
Your problem with using the Hook-It is the first time I have heard of this, although there may be others. Maybe it is the type of coverstock they are using. I just know I haven't had any problems and people I bowl with haven't had any problems........so far.
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Don't wear your self out cutting wood with an axe...Use a Buzzsaw