I tried to tweak my shifting since it has some hesitation between a few gears but lost track of the original settings and now I can not get the rears to shift properly. They will go up fine when its in the air and I'm adjusting but when I get to putting pedal strokes to it there is hesitating and sometimes a no shift. As it is I can either get them to go up easily or down easily but not smooth each direction. I should of just left it but I gotta learn sometime and now is the time. The rear is a shimano xtr and I was curious if there is a stock setting the high lows should be at from the start? It seems I can get the high on line but then the low won't line up properly etc. The high and low are fighting each other for control and I can't find a happy medium. I have been watching vids and everything and I am doing exactly what the vids are but I am SOL.