Long story, but we switched from UK to North more or about the same time as our longtime sailmaker. To my eye, North main has more curve in the luff and a shorter leech. It appears to require more pre-bend than the UK main, but we are trying to stick to the tuning guide, which is generally softer than we were used to. Genoa maybe a bit less luff curve so tighter headstay. Clew is significantly higher, so the sheet lead is 6-8" forward compared to UK. Still using the UK kite.
