Does the big KX make a good trail bike or are they too much except in the dunes? Been riding a YZ250 but want something with more grunt and prices on used ones seem resonable (maybe too much bike for some?). Are they hard to start? Also it would seem it would have good bottom end for messing around but be able to tackle hills easily. How is the power band? Is it fairly linear or hard hitting? Thanks for your replys.