On Tue, 24 Feb 2015 07:40:57 -0800 (PST), robobass
wrote:

Update. I did a bunch of things. Got a beefier vise, added more fasteners on the table, reduced the finishing pass width, depth and feedrate, and went with a thicker and shorter carbide mill (instead of HSS-Co) for the finish. Result is Super. You would never know I did the work on a gantry router instead of a knee mill!

Great news! You'll never know which change(s) did it, but it's still
good.

--
Ed Huntress