Look, we're clearly talking about the cream of the crop here, so it's not as if any one of these guys suck or anything, but having seen it up close and personal (I was front row for my last Blackmore's Night show; no, not in costume), I'm pretty sure the only limitation on Blackmore is whether he could think of it or not. "Fly To The Rainbow" is beautiful and all, but there's work on each of the BN records that approaches that.