If your tension is pretty even, I'd leave it alone from there.

If your tension is uneven, that may be a clue as to why it's out of round. Often, you can back off tension +/- 90 degrees from the high spot, and increase tension at the high spot, and that will fix you up. Try to "blend" these tension changes, so the center spoke of the adjustment zone gets the most turns, then move out and reduce the turn amount for each spoke out from the center of the zone.