Okay, I think this has been asked before, but I could not find the thread, so here goes. I am looking to increase my knowledge of measuring and drilling bowling balls in order to help the pro shop at the centre I work at make more money. The pro has shown me a certain amount, and I can drill holes, measure, plug etc well enough, but layouts and the like are a little confusing still, and he is "unwilling" to help despite the owners requests to him. Can anyone recommend any books, courses etc, bearing in mind that I live in Engalnd (which might rule out some options I guess). Any help is greatly appreciated.
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Reality Is.......Working out how to carry the 10, only to start leaving the 7.