I'v got the 10-14-19,5 combo, and it's a blast, but the 10 GXR is fast, sometimes to fast if you ask me, just blow out my eardrom in a BIG jump, but once you got the hang of it, it makes great highwind kitesession, it has a large windrange if you have the 14 you'll probably use it in 20-30 knots(25-35) if your heavy 85KG like me.
But it's fast kite but has all the nice fitures, that the 14'n has, like nice relaunch, like to overpowered, and is light on the handelbar!
So go for the best GAASTRA 2003 GXR
Michael