Woods are mostly what i ride, though in winter it's desert hills, occasionally sand dunes and now and then I abuse myself on the MX track. I'm a hair lighter than you ;) and have had my suspension reworked, which made tons of difference. It took me a bit to get used to when it was new, since I'd had an XR before that, but I love it now. You couldn't trade me for any other bike, two or four stroke, and even a brand new 200 I'd hesitate at since i've got a bit of $ into mine.
at any rate I'm pretty much a spode but I can at least keep the back of the pack in sight and the sweep rider from running me over. The power is beautiful and I love it. I like 125s on the track or in flat woods, and they're fun for a while, but mine's better.