I picked up this 1" surface planing bit on Amazon to face my spoil board. From a couple of calculators, I have come up with around 10000 rpm at about 4500 mm/min for speeds/feeds (with 40% stepover and 0.5mm DOC). This feed rate seems kinda high to me. My router will go down to 9000 rpm, so I'm thinking of slowing down the feeds a bit as well. Anyone milling MDF with a similar bit? If so what are you doing? Thanks!