Dave,
Thanks for the shot of confidence (I do so love to read the manuals more than once:)). I guess the biggest problem is with the Theater i, not having the same dynamics as the Odysseys. It is really no problem changing the settings, but if I go small, everything (L-R_C) below 150Hz (or as set) heads for the sub, if I go big, the way I'm reading it is, I'm going to lose out on everything below 35Hz (LFE gets routed to the large speakers). Way I'm reading it, unless there is some way (which the answer is probably not - see note 1, pg 25 of manual) to just send LFE from the center below cut off for the center only, I'll either have to rely on boomy/muddy/non-responsive bass of the M&K (nothing against M&Ks they are great sub-bass for a lesser system), or loose the center channel LFEs (should be routed to the MLs if set on large - will see if bass response of MLs will be good enough). Of course other potential solution (and probably the right one) is to loose the M&K for something better and go small.
Again really appreciate advice - the manual is a very large and system is full of nice suprises. Can't wait to test the "pure analog" by-pass on the system in the stereo mode. I do love the engineers at "Mac", they think of just about everything.
Thx!
Scott