The idea for making the eyes into another detent would not work.
They would keep the balls from feeding.
I REALLY like the japanese sword decorations. I might just put that to use...
EDIT: Also, heat dispersion doesn't affect annodizing. But reannoing a part and annoing a virgin part (the weld spot) will come out slightly different. This all depends on who's doing the annodizing and who is doing the prep work.