Didn't say it was invalid,just not up to his standard as his best work. Albert Grossman who I believe was Bob Dylan's manager along with Al Kooper and CBS records were the hucksters. I'm so glad I had an actual chance to see the older legends Muddy Waters, Albert King, Howlin Wolf, Cornell Dupree,Ray Charles, Albert Collins, B.B.King, and others. There are few younger greats like Lucky Peterson, Shemila Copeland, etc still carrying the tradition of the Blues. But the marketed SRV wannabes make me I'll. And no doubt SRV would feel the same about it.