Didn't know about the boom sense deal. I guess if I would have hooked up the wires as you suggest it would have been almost the same except for the lack of a "Master" boom control switch. In my case the master gets used a lot more than the individual section switches so I guess I'll consider the investment in the six relays needed to make my 440 the real controller of the booms as not totally wasted.

Makes it so I don't feel quite as dumb about overlooking the voltage sense deal too