I actually think it's a band decision, but Sam obviously has alot of input. I'm not really sure if Sam has heard all of VH's material before he joined, because there are gems in there and he just doesn't want to sing them. He can obviously pull it off, but why he doesn't want too just boggles me. He'll sing cover songs out the waazoo in Cabo, but won't sing the Dave stuff in
Van Halen. Kinda pisses me off, but what can ya do. Atleast sing some of the early Sam stuff if you're not gonna do much Dave material. Break out
Summer Nights, 5150, Sucker In A Three Piece, all that shit man.