After taking a break in my twenties to grow up (ya right ) get an education, earn and settle my family; at 30 I purchased an 01 YZ 125. Rode it for awhile, blew the cobwebs out and got back to form. My buds were on 426's and you know what peer pressure does. I sold the tiddler and purchased a twice ridden 01' 426. The original owner had installed a huge flywheel weight but otherwise the bike was stock and pristine. One word can describe this bike, wow! It felt like a streetbike motor in a dirtbike frame. I was able to do any & everything with this bike; MX, dunes, single-track, etc... Buddies that were once faster were now equals and some were now lesser . Tracks with obstacles I’d never cleared were now cleared. I know, “of course I can clear it; this bike has more power”. But it was much more than that; I'd developed an ability to flow instead of just clearing obstacles. Initially I left the fww in to adjust to the power (of course takin it out for the dunes), and eventually I ran all the time without it (unless riding CC). I had a couple of major get-offs but my confidence stayed high. I rode it for a couple years and besides chain, sprockets, removing filter cage screen, tires and routine maintenance; the bike was left bone stock. After reading about its weight, how hard it was to start, how superior new suspension, aluminum frames and their geometries were; I sold it. Since that time I've owned an 03 YZ250, 04 CRF 450 (for me, worse bike ever), 06 YZ 250F LE, 07 KX 250F, and an 08 RMZ450 with exhaust and suspension work. Apologize for the long setup but here is the question: I still ride many of the same tracks / places as I did on the 426, but why am I not as comfortable nor ride as well?