So I've read the many posts about combining speaker sizes and ohms and vertically stacked speaker arrangements. I have a slightly different take on the setup though. I have a vertical 215 cabinet (4 ohm) and a 210 cabinet (8 ohm). Right now I run either cab one at a time through a 2 channel rack mount eq into a 2 channel power amp. If I were to run both cabinets at the same time I could sit the 210 cab vertically on top of the 215 cabinet. The 210 cabinet would be in one of the channels of the eq and one side of the power amp. I could then run the 215 cabinet through the other channel of the eq and the other channel of the power amp. This setup would allow me to eq and power each cabinet differently. I haven't tried this yet and may do it just for the fun of it. Would the typical concern of mismatching cabinets apply in this scenario?