I've only used a Dewalt benchtop and 8" Delta Homecraft table saw. Shopping now for a saw with a larger blade to be able to rip-cut thicker boards precisely and safely, one that doesn't throw the sawdust in my face. Since I don't need to rip plywood sheets and don't have a lot of space in my one-car garage, I am looking for a compact saw with good dust containment, one that is not imprecise and is not underpowered. I am willing to spend up to $800. A couple of the 10" jobsite saws I'm considering (Oliver, Grizzly) have 2HP DC motors with a knob that lets you set blade speed. (These saws can also do double-duty as disc sanders.) Is the ability to control blade speed in real time a feature that would contribute in a significant way to making safe, clean, and precise rip cuts in hardwood boards, all other factors being equal (HP, proper blade choice, non-deflecting fence, etc.)?