If you play that far outside, you IMHO do not need such an oil ball at all, unless you have a crappy release. An oil ball, well, needs oil, and only on true flat sport pattrens you will find some in the 5th board area, and most of the time it is not as long as the inner part of the lanes.
Seriously, I have the impression that either your pro shop wants to sell you "another expensive ball", or that you better invest the money in a coach to improve on your release.
Because playing up the boards hardly need such an oiler - A Smash Zone with a stronger drilling, even if you have lower revs, should be enough, esp. if you call your lanes "medium" or less. The oiler is literally dead when it is half down the lane, will hardly move at all - but it is not the oily lane, just too much ball...
Just my 2 cents
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DizzyFugu - Reporting from Germany
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Edited on 10/27/2008 7:22 AM