I recently surfaced my MDF using the directions linked in various places throughout this category. When doing a facing cut, I have slight ridges between the tool paths. It seems like the climb cuts are much better quality than the conventional cuts.
Is there anything else that will improve the facing quality beyond slowing down and going to climb cuts only for the passes? I am confident the MDF is trammed well to the spindle, so I suspect I may just be a little too aggressive on my speeds/feeds.