I don't know. I listen every Saturday night and it's usually weeks before I hear him repeat a song, and it's usually by request.
Repeating a song is not really what I meant by not mixing it up. They really do not dig deep into the underground non radio played hair band stuff nor do they break into song 10 off an album that nobody but the people who owned it ever heard. It's kind of like listening to Hair Nation on XM. I love the set list and I hear a bunch of stuff I "forgot" about, but they never really play anything that I don't remember.
I don't know how old you are GG but I'm 47. I was a senior in 1985 at the hay day times of hair music. It was all that was played on the radio rock channels. House of hair, hair nation and hell, I'll throw in Eddie Trunk into the list never really stray far from that path.
I've always said, I like songs that get played on the radio, I like bands when I can put on an album and like a large percent of what you will never hear on the radio also.