I wish! Unfortunately we are out of IOs on that processor.
And the 7.5V is actually closer to 7.25. So it should work for any servos setup to run on 7.2V.
Thanks!
Could you drop the 5.5v setting in favor of a 6.5v setting? I don't know of any servos that are rated at 5.5v, and every 6v servo should work fine at 6.5v(5c nimh fully charged)