I20 and F17 comparison...Performance mid-winters we had a combined start. The I20 was hotter upwind and I remember getting clobered on the starts by Bob Curry but catching him 3/4 the way to A mark and passing fairly easy to leward...Bob wasn't breathing very hard at the time though. I'm sorry I don't have a downwind comparison but I don't recall Bob catching us once we got past him. During the light stuff, I remember about the same difference...but again don't recall any direct in downwind difference.