I was there in february while in Morristown on business. I was able to make two keiko sessions. I really enjoyed my time there...good energy, nice folks, and although I didn't get to take any of O'Conner Sensei's classes, I thought the teachers were very good. I remember a yudansha named Scott from the first night...I trained with him most of the class. Do you know who that is? He was really nice and got me acclimated. I have some entries in my journal from those sessions.
I'm glad there are others that sweat profusely...and that most seem to understand. As others have said, its not something we can control.