Joe , I got better results slowing the spindle down and a light spray of wd-40 . I know your doing it by way of cnc and I'm in the cave yet by hand
but I think the principle would be the same . no ? my issue is getting my big mill going so I can play with it and see how it works with my amateur programing skills
BTW , from where I'm sitting , the grill look great
IHSteve