Only shaving off 0.02" to 0.03" at a time, I run mine at:
10,000 to 12,000 rpm
5 inches per second Feed (300 inches per minute)
3 inches per second Plunge (180 inches per minute)
Depending on your machine, you may want to go 3 inches per second Feed, 2 inches per second Plunge.
Oh, the pocket is set for Offset, Conventional with a 20% stepover, 2" Ramp Plunge Move.
-ShopBot Buddy PRSAlpha CNC