Good evening rickbrk, I started using the Deus when v5 became available, it’s pretty much the only software version on the Deus that I know. It runs very well with my 11 inch LF coil and my 9 inch X35 coil. Version 5.1 addressed issues with the MI-6 pinpointer, and version 5.2 addressed connectivity issues with coils, remotes, and headphones. I believe that additional options were added to the WS4 and WS5 headphones that made them a little less dependent on the control unit. Not knowing your configuration, I can’t say that you definitively should upgrade, just know that 5.2 is very stable in my opinion.
