Since the SWAJ uses a different switching technique, there should be no reason the SWAJ couldn't be used in a cascade configuration with ANY other coax-controlled switch. I just tried it to hook my 6000 up with a spare feed from my legacy DualLNBFs on my Dish500 w/ SW21. Instead of all 3 sats, I just saw 119 + 61.5. I figured it wouldn't work, but was worth a try. (I tried this in prep. for the rumoured 8PSK content on the 110 bird, and this would have been a zero cost solution for me). I guess I have no choice but to get the ladder out and do some reconfiguration and/or rewiring (Twin or SW64 or whatever). It's probably too much to expect them to support this now (since the SWAJ is discontinued), but I wonder why they didn't implement this when cascading became an alternative solution to buying an expensive SW64.