ok my 2c....I reckon for a beginner you can't go past the 04 or 05(if you want to spend a little more) airush switches, all sizes are great but dependant on your kite(s), weight, intended use and estimated speed of learning. I've just got a 32 flx after a 47 wavetray and its quite a bit skatier and still getting used to the change but love the feel, really light and responsive. But I rode a 135 04 switch recently and it was surprised at how nice it was, if I couldn't afford the new flx, as no one sells em 2nd hand , I would have bought one of those babies cheap. I reckon its a better beginners board too, with the concave the rail hung in a bit better so you should get going up wind on the switch easier. good luck