Dave, I weigh almost the same as you. I find the 7 & 12 a good combo for me. As previously stated, the bottom end, using a 135 board, is about 20 knots. However, at that end of the spectrum, expect to be carving rather than jumping. I feel fine on the 12 at 25 knots, and have had it out in much more. I would base my decision on the wind range that you intend using the kite. In Victoria we have lots of 12m days with some really strong winds thrown in, so hence my decision. Even through the summer, i have used my 7m almost as much as the 12. i really think that it comes down to what wind range you want to kite in as well as the typical wind range that you have in your location. For me that is typically 14 knots to 35 knots——i’ts amazing that that can be done on just 2 kites and 1 board.