I guess I should have said: Which technique will flatten MY workbench the fastest.
Built a new workbench top - 60"x30" hard maple. Screwed up a glue-up and have a crown in the top that's at least 1/8" tall. So it needs some flattening. Is that a lot to take off?
Which method of flattening will be fastest? Hand plane (I have a Veritas bevel up jack plane that I'm incompetently dangerous with), router sled, or take it to a cabinet shop for a wide-belting? I'm totally willing to put some sweat into this and handplane it flat (if only to learn how to handle the plane, better), but don't know if 1/8" off is an reasonable amount of material to try to remove.