well, the only problem you'll get is the low end.
in 8-10knots, when the small dudes get to start, you'll sit on the beach and watch.
but your windrange's not smaller, only moved upwards.
so you can still hold a kite when the small dudes watch you because there's too much wind for them
it's very important to take lessons!
when kiteboarding you may not only harm yourself, but put others into danger when doing mistakes.
learning by try'n error's a very very painful way - and you can profit of the errors others made for you....
a friend of mine (we learned the hard way, cause there were no schools back in '2000)
broke 8 ribs, i broke my wrist and we both had
several lighter injuries that were 95% totally unneccesary.......