When your Rev bow ties, it is because too much brake input is applied to one wing and the wind gets underneath and pressurizes the back. That is, too much thumb toward the kite. It sometimes happens to me when I'm mucking around inverted.
Extra lift, thumbs back, shouldn't contribute as the leading edge is into the wind.
A race frame doesn't have a specific wind range as it varies to which type of sail it's in. It fits in between a 2 wrap and a 3 wrap.
Hope this helps.
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