Greetings, I'm flattening an old schoolteacher's desk with maple top for a workbench. My 4 & 5 plane irons are scary sharp. I set the bite to a gnat's whisker. Etc. I got nasty tearout in both directions on two boards in the top. I have read of using a smooth plane to "work around" twisty grain. (The bottom has tearout on the same two pieces, and mill marks from the factory's planer.)
How exactly do you handle this? Swoop down gradually so you don't leave landing and takeoff marks? Go straight along, but ease off the pressure? Change the angle of attack for an extremely acute slice?
My local library system doesn't have advanced plane books, and I don't recall the _Plane Basics_ (or something like that) book to have discussed this in detail.
Thanks