[quote="boyceduke"]Hi, I have narrowed by board choice down to a north Jamie 2012
I am 96kg and ride rpms 8,10,12m kites. Shall I get the 136x41. Or 139x42. I want one board to do all /quote]
The 139 not because it is longer but because it is wider and has slightly flatter rocker
You will want 42 wide when riding your 12M in lighter winds
At 96kg on your 8M holding an edge will be no problem in 35 knots and more fun especially if wind is gusty and drops to 20-25 knots at times. You will keep planing instead of sinking
I am 75kg and have a 135x40.5 North Select