Rob,
   The new panel mounted EDS controller wasn't yet available when I put my
O2 system in.  I probably wouldn't have bought it anyway due to cost and the
fact that I can hook either an EDS unit or standard canula/mask to the ports
I have up front, which give me an option if my EDS unit malfunctions.
   As for CG, the Super ES is notoriously nose heavy, so I can use aft
weight, especially since I opted to put my battery on the firewall.
   Skip Slater