Guys, I've read this thread with the greatest interest! Thanks to all of you.
After reading these posts on humps, dips and polarity, I went down and reversed the banana connector on one of my 4343's bass speaker inputs (I'm bi-amping these). In this "reversed" position the bass became boomy!. I put a battery on the banana pins and, in my original normal position, the 2231 and 2121 were out of phase!
I was shocked! I feel this "out of phase" position is more correct in terms of balance. Be aware that I'm running these 4343s with a Rane 24dB active crossover with no phase shift dialed in. I set the phase shift for maxium output at the crossover freq. of 250Hz, which was zero. ...wow, I'm beginning to get confused.
When I run these using my 5235, using the "optomized" cards for the 4343, with the wiring in my normal position (2231 and 2121 out of phase) am I getting proper balance?

Please can someone clear this all up?
Thanks,

Tom