Previously, I spoke of thousands of clicks, shooting off into mesmerization. Layers would have robbed me of the insight, and I suppose now I will have to pursue some other automaton type task when I feel the need to hit the reset button of my mind (MIDI sequencing in step edit does fill in nicely). It boils down to this: I can build a framework of grid lines (depicted here in cyan) upon which to reference the drawing, and when I'm done: *poof*! Deleted. Instead of whittled away over hours.
This triangulated grid was deployed due to the fact that the part has no parallel straight lines. It's easiest to find center this way anyway.
Just the click of a button. Delightful!