Hi if you get the chance, give the xenon boards a go and the shinn boards, I've ridden both and owned and trialed plenty, for choppy conditions and easy on the body they are superb, I've got the shinn monk wouldn't change, if you want a unbiased professional advice tap into www.Kiteworld.com they've reviewed all the boards and you can read up on how they rate them, also shinnworld , good luck
disclosure I sell them (but I sell them cos I love them) If its a lightwind board with performance you are after try the Shinn King George 140. I havent ridden too many big lightwind boards the past coupkle of seasons but the King George was the first one I have ever ridden which still performed like aTT despite the size.
I may well be using the King George 144 in the epic 200Km crossing from Aust to PNG. Comfort and control all in the one pack. (ps Im only 75kg)