Waiting to get your "two" XS30s dialed in has to be killing you.
A suggestion, run your EQ program today and in about two or three weeks, after everything has loosened up (40hr break-in period) re-run your EQ program which will give you an accurate EQ'g as they will have loosened.
Another suggestion, run your subwoofers for "at least" a half-hour before dialing them in as a warming up amplifier does have changing output characteristics. I learned this after a few warm-ups, noticing changing measurements, old vs new and as the amplifier warms up, the measurements return to their old, last saved measurement which is being used as a baseline measurement.
Good luck and congratulations on their arrival and pending installation.
-Edited by BeeMan458 - 2/12/14 at 3:15pm