ACA setup... 12:1, 8:1 or 6:1?!?

[boji]

Some thought should really be given; after all, these are on the main bus, which is supposed to be the noblest path in the mixer!

Well said. I'd like to do this right.

You seem to be worried about the possibility to overload a reverb unit with bass.

Yes this was a concern which you've somewhat negated.  I'll start a new thread about sends and returns for opinions on choices of features, etc.