IF I had a true 240 volt at the source panel, and I had no equipment that was 'fussy' for 240...I would be happy with 3-5% VD. (232 or 228).

Keep in mind the starting currents, although brief, will cause additional drop, brown-out, flicker, etc.

Why not just increase the feeder?? Cost??
Having to possibly 'do it over' is not a savings.

John