After realizing I was completely hijacking the other conversation, I split this off to its own topic.. I'm going to break with conventional wisdom and disagree with what we've always thought on one minor point. The B-series taught Rev how to vent from what is now the standard accepted approach. Mid-vent take a stripe off of each wing and replace with screen . Full vent, Take 2.. etc.  Bazzer's Phoenix started venting the trailing edge (including on the full sail) which changes the way the k