Wayne,
My comment was comparing RWA modded Olives with RWA modded SBs.
As I can't hear the difference between battery and enhanced A/C mode I wouldn't do RWA battery option for a SB again. As I understand RWA has made improvements regarding the batteries to be user replacable, better secured, and simplier switching charge/use modes that had all cost me in shipping damages with the SB and Clari-T.
Note my house is newly built in a small rural subdivision, no heavy industry nearby, underground service with our own transformer, all new appliances, three dedicated circuits for the audio each with cryo'd hospital grade Hubbell receptacles with a combined/separate ground. So A/C here is nearly ideal.