I've known of the 3dB drop in sensitivity for what seems like ages now. C'mon Cube Audio! : )
Given my choice of the 2A3 amp and purposely speccing it for 3 watt output...the V2 drivers are not going to work for me because I'm fully invested in Scott Sheaffer's Found Music amp build.
Stephen, I'm in agreement with your assessment (and current position) and how a new choice may impact your decision regarding V1 v. V2.