KK First off, I have my amp. Got a great deal on a gently used Yorkville BM400 combo with 1 15" and tweeter. The head has everything I need AND it is easily removed from the combo cab. Just 4 screws(spaced at 2 standard rack spaces), and out she popped, fully encased in metal no less. Amp is 4 ohm min which will accommodate 2X 8 ohm 210's or 212's. Now to the question. I'm still wanting a 210 or 212 vertical stack. WHY are almost all 212's set up with the drivers staggered? Are there any dispersion issues with this arrangement as there are with side by side cabs? Why are 210's never set up this way?