Kevin
I imagine there is something to gain, but not necessarily full compliance. Data seems to support less coupling in the axicom relay. But also spurious performance seems to vary across boards. If a very high rejection is needed, say more than 10 or 15 dB, it might not be enough. Here I am using a daughter board to replace the input relays in my v4. I don't yet have data on my unit, but it worked nicely for another local builder here. I hope someone will kit this solution for sale, as maybe its needed for all versions,? we'll see. The other spurious problem at the 45 MHz mixer path also needs solution in prior versions,? I haven't seen any v5 data on this.
Curt