thanks for the feedback. On some wooped out hard sand single track the 450 seems to handle the woops better than some of my earlier bikes where the front and rear suspension was not as balanced. These woops are deep and in single track, but were handled very well and could take them in sets of three or four. On a motocross practice track with really soft sand I was in trouble. The fat tank means I can not grip the bike donw low, but have to grip the tank. When less than 5 litres of fuel things are a lot better. Doing everything I think is right the front or back not sure makes me think I can't control the bike. I intend to preload correctly the front forks and sort the back as suggested and then not back off in corners and see what happens.... the sand is soft. Riding these woops is a lot of fun and good excersise......when I rode a ktm 200 in the same place it was so easy i started looking up for the rider in front and did not think about riding..... I think it has something to do with 4 strokes being heavier? The real test will be if I get a chance to ride a ktm 4 stroke in the same spot. I think the not back of in corners will be my next try with the preloaded front suspension. I did increas rebound three clicks and that seemed to help quite bit. I need the 7.3 litre tank or the allow one for this sort of riding?