i use the nobile 2009 xtr 140x46 for light wind. with my 90kgs it pairs nicely with a 13m kite in 13-18knts. it is restrictive to a point, but as good as its going to get in those conditions.
upwind technique is slightly different to smaller boards, but the nobile xtr seems to grip and go fairly well. edging takes a bit of effort because of the width, it likes to run flat and fast.
pop is good, and in 13 knots, it feels like a normal freestyle board.
nobile fins are grippy.. and on hard landings watch your knees. oh and pads and straps are crap
cheers james