My driller averages about 240 on the ths (he's also the laneman) and well over 200 in PBA regionals, though he dropped his card. BUT, I don't really think being a good driller equates to being a good bowler. It can certainly help (knowing layouts and ball characteristics is a huge plus), but if you don't have the mechanics down you're not going to be all that great.
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"A little sincerity is a dangerous thing, and a great deal of it is absolutely fatal." Oscar Wilde
Ragnar sure likes to throw his purdy Uranium Buzzsaw.