All great ideas.
Now I drill all holes the same and use hand reamers to enlarge component holes and larger drills for mountiing hole.
My only suggestion is to ramp into the PCB rather than plunge. I use 0.8mm endmills and they break very easily.
The vernacular I'm familiar with refers to milling the perimeter of a hole as a profile and milling the hole from the inside out as a pocket. Pockets can also be milled using either conventional or?trochoidal milling. The latter uses more of the side of the endmill while "conventional" milling uses more of the tip. I doubt the trochoidal?approach would have any benefit for such small holes and would be more likely to break such tender endmills.
Thank you for your efforts.
John