RE: Early planning gear light weight sailors
I'm about 60kg and have found my Hypersonic (H105) planes quite early when rigged with a big (8.5+) sail. I've sailed it with sails as big a 9.6 I've also sailed a number of formula boards. While I can't quantify the difference in early planning between the H105 and larger boards I don't think its much. A bigger fin (I've used as large as 58 cm) does seem to help for early planning. The stock 44 cm fin wouldn't do as well.