I was wondering about the slant. IMHO it would seem that a rearward slant would be better than a forward one. The flat might be a middle of the road option but the easiest to pull off.
I do like the under body fairing but don't know how to make one that would survive a New England Winter. I have dragged the frame over a many a snow bank. Flexible airdam and side skirts are a must.
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