Larry, most likely this was due to the way we set-up at HotHouse, which was different than how we usually arrange ourselves. Randy is normally in the middle, with Joe and I flanking him on either side, which separates the two of us well. Lately, however, we've been having problems with Joe's amp rattling Randy's snare, so we thought we'd try setting up with me in the middle and Randy and Joe as far apart as we could. But from what you say, it might be better to stick with what we've been doing.
Thanks for the observation!