This one from a fellow freshwater (river), 41 year old, 86 kg sailor so pretty close ;-)
For 4.5-5.2 wind and ugly lumps it will produce, a 100l board will be too big. I use a Kombat86 (kode predecessor), and it's just about perfect. If your wind is full of holes, you could go for K94, but I still think it won't be much fun in solid 4.5/5.2 weather. It could be used with your 6.5 on the other hand. So I'd say go for 86.
Oh and from what I've heard, go for wood, not carbon if you're after control/comfort. In fact you can't go wrong if you find a 2007/8 Kombat.
PS don't worry about volume, 86 is pretty wide and chunky board, it won't feel that small.
Last edited by Screamer; 24th November 2009 at 02:44 PM.