I too saw them at the amphitheater 1972-1974 cant remember or find anything online about them but I remember it was one of the best shows Ive seen ever...Do you remember the one one with Winter Bros?Or any others?
why do people write things like this  This is a quality band fronted by two main guys, one of whom has a less than stellar musical reputation. That does not mean this project isn't valid. It's more than valid; the arrangements and instrumentation often bordered on genius.
Saw these 2 at the Andrews outdoor amphitheater in Hawaii back in the early 70's. Great music then, great music now. Their early stuff, unbelievably, can be found on youtube. House at Pooh Corner is exactly as I remember seeing it back then.