Guys I am fairly new to the game of Kite Boarding (and an old fart of 57 years) but still really fit, I am about 170cm (5'8") tall and weigh about 80kg. I have a 10m (which I love) but it gets pretty windy down my way on the South Coast of NSW (which is great) so I am thinking I should get at least one other smaller kite but don't know what size I should get? Is a 7 enough different for me to get the use out of or should I be looking at a 6 or a 5m? I don't do jumps or tricks yet but will be getting into that this summer. Any advice would be greatly appreciated.
I think a 7m will complement your 10m nicely. At 80 kg you should be able to use a 7 up to almost stupidly windy(35-40 knots). Get something stable with plently of depower. I don't think you would get much use out of a 5 or 6m.