Anywhere from 0 (horizontal) to 30 deg up I guess. At 0 it'll stick further out the back but it should leave less trailing wake area thus be more effective. At 30 it'll stick up and get in your rearward vision but it'll intersect the template curve without sticking so far out the back- and of course it'll leave a larger trailing wake area but still be better than nothing.
Last edited by Frank Lee; 05-22-2011 at 04:56 AM..
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