Thanks for the comments, men.
Sorry to be tardy in reply but down with the flu this weekend with not the energy to sit at the computer.
Brettlandon, that is one cool looking broadhead. I've read here that the late Jack Howard used something similar to kill deer with.
Lefieshot,
I used a hand held pneumatic cutoff tool with a thin wheel and free handed them. Truthfully, there was a light reflection along the length of the field point that I followed to keep a visual center while grinding. The slots were usually a tad bit oversized but the epoxy putty filled up the space and held them giving me time to straighten and align to broadhead. Then superglue on the joint, two small holes with the drill press with finish nails as the pins hammered in place.
I've tried the Drimel tool for the slots but it just doesn't have what it takes to get the job done.
Easternfisher,
They average out to 243 grains.