if i were serious about mx/racing.. id be on a 4 stroke again...
now that i just ride for the fun of it, i cant tell you how much fun it is to whip a 2 stroke around the track... i'm still riding my yz125 (and im 200lb+!) and i can still clear every table, camelback/stepdown, and triple on the track on that thing!
the 2 stroke will make you a better ride because you cant afford to fall off the pipe, you have to keep it in the powerband and make sure your timing is right, corner entry speed is good, corner exit speed is good, ..etc...
although im able to hit every jump on the track.... if i dont hit the corner before the jumps JUST RIGHT, i have to back off...
so, the 2 stroke is funner for me personally, but, if youre just learning, a four stroke might help you stay out of trouble! you can be a little sloppier and still know you got that power right there waiting for you if you
something up.
i run vp110 and 927 in my 125... smells sweet.. i only burn about 3 gallons a day... what a difference between all the other things (boats , jetskiis, etc)!!!
heres a pic of my whip from last week! braaaaaaaaaaaaaaaap!