Oh, we're being condescending now. Ok, jerkwad.
Do the math for me, then, genius. How much downward force is there when there is barely 1/16" clearance between the metal case of the planer and the bottom of the rollers.
Also, why is is that I push a board through the planer with very little effort with my fingertips on a planer with worn rollers and still get a full removal of material. And explain how I can do this on a cupped board. Do the math for me, Mr. Hawking.
I'm guessing you have experience with a planer that exerts a bunch of unnecessary downward force. Fine, I don't argue that your does that. But don't sit there and belittle my experience on my planer with your pissy little condescending attitude, Missy.