In San Francisco Bay I’m using Naish 95L Hover w/ 2450 wing, 75cm mast and 6.0 wing-surfer. 10-15 knots is minimum to get up on foil. Wind needs to average at least 12 knots. If lulls go below 10 then I can’t keep the board flying on foil above the water surface. 12-15 knots is the sweet spot for this setup. I’m not really into pumping the board up onto foil yet.