And an "aha" moment. I was thinking "hey, no phase cancelation with the FOH, since there's no bass in in", not thinking about the two bass cabs canceling each other. (sigh) There's no beating physics.
Here the new layout. The bass will deliver enough onstage, but it's shallow enough that the bass transmission won't really get going until further out.
Here the new layout. The bass will deliver enough onstage, but it's shallow enough that the bass transmission won't really get going until further out.