Hello Kruza,
I am 75kgs and sail a hs96 with neil pryde rs6 7.2 and 6.2. I have done some slalom racing and have had a couple of 1st, 2nd and 3rd's. They are very capable on the straights and if it is slightly upwind you will do very well. If you push it hard around the gybe you should come out pretty well and hopefully win the race. This is the theory anyway.
Good luck


Carl