I've been playing this game for a long time, starting with Guitar Hero back when nobody knew what the hell Guitar Hero is. I'm fully Rock Band now, and finally starting to up really good numbers on expert guitar. Previously I've always mostly strummed my way through HO/PO notes, but now I enjoy playing then without strumming (in most circumstances). Here's my questions for those of you who are really good on guitar/bass.

Do you always hammer on the HO sections, or is it a matter of context?
Do anybody use PO's or do you, like me, just hammer on in the opposite direction?
Does anybody use the "solo buttons" on the squire to play solos?
Does anybody else slide their finger across the frets, rather than tapping or pressing when playing a HO section?

I don't always slide but commonly slide from blue to orange with my pinky, and if the HO is really tight (notes in rapid secession) I'll just slide my primary finger across the frets to play it. It doesn't work all the time, probably because I'm just not that good, but it happens quite naturally so I just go with it.