Rubio is a two coat thing mostly and it only bonds chemically with wood fibers so they suggest a rough finish to give the stuff more material it can latch onto. I'm using for the first time. Just like the dull sheen and ease of application. I'd only use it on nice looking wood that does not need help.
Just wonder why you'd fine sand after hand planing, are you meaning after some shellac or sealer goes on? Also really wondering how hand planing differs mechanically from a 3 blade rotating head that creates a finer surface. I'd think the higher speed would make a cleaner cut - it must be the angle. I'll have that 735 running soon and will run some tests - thanks.