Whats the best way to cut

[Pete F.]

If you are trying to make a bunch the same, I'd use a router with a pattern bit. Make the pattern out of 1/4" material.
What i mean by a pattern bit is http://woodworker.com/cgi-bin/FULLPR...%20Trim%20Bits
It's easier to get the pattern right if you make it out of thin material. Drill a hole for the round end.
You only need to make one pattern, you can move it to make three rod grooves. Just make it big enough to clamp on the piece.