After viewing the P3 at Dayton, and pondering adding one, one item came to mind which would make it more appealing to me. This would be a means to switch the P3 between two K3s from the P3 itself, and/or via computer.
Yes, I know something could be jury rigged up to make that happen, but desktop real estate is at a premium...
I envision something simple an elegant, maybe with a couple LEDs on either side of the display so that you would know which rig is on display.
Just an idea...
73,
Julius