After continued use commuting in the E1, i found a couple of tricks. First,the turbulance was much more noticible with the peak in the highest postion. At highway speeds i would lower the peak and it proved to be more stable. Not perfect by any means, i expect Schubert to address this in the E2 or maybe E1 Pro. Second, what is the point of those locking levers for the peak? After a few times of locking and unlocking the peak, i just started leaving it unlocked. It never showed any sign of moving around on it's own, as much as it would vibrate in any position. I could see if you wanted it to stay in the top or middle position while going through some brush, but no, they are actually useless. If one of my levers broke off, i don't think i'd waste the time to replace it as long as it could be left in the unlocked position. Think of how much weight you are saving!