Sierra_rider
Piss revver
Pardon the pun, but I'm going against the grain on this one...I'm a fan of 20" bars on the 50cc pro saws. I'm usually using the small saws for brushing/limbing/dicing up large branches for handling, so I'm not necessarily dogged in with the saw. The 20" allows me a more upright work position. I can even bury the bar in softwoods, but at that point, I'm using a larger saw.