I'm sure it's more $ than I have, so I'll play the lottery this week. I see how close the professionals get to final inlet with a mill, and I'm a bit jealous. My method is OK, but leaves about 1/16" to 1/8" to hand inlet. I bet it's closer to 1/64" with a mill.
Every 1/16" to remove during inletting is many many phases of removing just the blackened wood. (An old gun advert said the their tolerances were the thickness of a layer of smoke, and that's about what it is removed during each pass)
Hand job of hogging out before inletting.
Careful layout, then hand drill the bulk of the wood

Chisel out the web, and ready for inlet

Jim Kobe's pre-inlet hog-off with a milling machine (from the AR forum)
http://i54.photobucket.com/albums/g83/J ... t001-1.jpg