I just ran the first test after the mod and it was a success , i was milling a pocket in 1/4" birch plywood with a 1/8th compression endmill and it was chattering like crazy at 40 ipm , I just ran a similar job with 3/8 ply at 100 ipm with zero chatter its night and day , check out the post i made yesterday watch the video, I’m fixing to post a new video showing results in that thread.