Trying an idea for a christmas gift, using Fusion 360. Cutting pockets in pine, 1/4 endmill, 17k, 50ipm, .15" stepover, .08" doc, finishing pass .008" with same stepover. Still getting lines like below. Cutting almost 200 of these, like a scrabble board. Is it the pine? Not sure if I can change the stepover on the pocket finishing pass, maybe could rough out the pockets then finish? Tried a half dozen iterations so far, getting better but not sure where to go from here. Thanks!