Get a dial indicator, and magnetic base, no question there. It takes a while to get used to adjusting the jaws in the correct direction to correct runout, but after you've done it a couple of thousand times, it becomes second nature
A wiggler is of no use if the part has no center drilled hole or a punch mark. There are thousands of hollow parts that require setting up that a wiggler would be useless for.
First you get good, then you get fast. Then grouchiness sets in.
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)