I've had 15 or so bikes since i've been riding. Road and Trail bikes both. 2 strokes and 4. I've mainly stuck to 2 strokes for the bush and I really like the challenge of getting up a rock face or steep hill. I recently sold my 2 stroke(DT200R) and bought a 4 stroke (WR450F) and i'm having a hard time coming to grips with the power delivery of the 4 stroke. I keep stacking it! I either stall it and fall back down the hill or near flip it. The throttle seems to be an on off switch with no in between. I had thought the torque of a 4 stroke would be good for getting up hills but I find I am really missing my old DT200R.... What are your thoughts regarding this type of riding?