Odysseus
Strat-O-Master
I'm surprised nobody has mentioned the problem of strings jumping in the nut slots. Not coming out of the slot, as someone did say, but just vibrating in the slot and so deadening the sound. It depends on how hard you play, I imagine (or what kind of song you're actually playing), but I had the problem with non-staggered machine heads that had just one string tree, so I added a second and the problem was resolved. And I'm not a particularly heavy-handed player.