I saw them two or three times around the Blackout era and then once again in the late 90's. They were one of the tightest, most pro sounding bands I ever saw. Klaus was amazing in both his energy and how he used it (while still singing surprisingly well *full stop* (not just for a guy who moved around that much). Any time I hear someone excusing today's crop of talentless, can't go onstage without full backing tape, 'singers', I think of Klaus - and the word 'bullshit' springs to mind. He ran around that stage like a motherf#*ker and still sang his ass off!