Ideal way to notch tube

[bergers59]

Getting ready to build the 6 point cage for my nova, resembling the green sleeper nova cage. The goal is to have it as hidden as possible. Anyways, when building our baja chassis out of chromoly at school we used a baileigh tn250 notcher (which I wasn't too impressed with) as well as a combination of hand grinding/filing them. Now that I'm home, I have a bridgeport that I can use, but I'm not sure if that is the ideal way. I was just curious how everyone fits their notches if they're using a notcher, mill, or whatever.