I cant even remember if I commented in this thread before, but I echo some of the sentiments of others, MS-pros, resolve guitar like nothing else.
The tonality is amazing, my brother who is a professional guitarist agrees, they are dead on the money.
They also have an amazing energy about them, not quite the exaggerated excitement of the ms-2 or a couple of the grado's I heard, but they are lively, and bring alot to rock tracks.
I don't find bass to be incredibly deep, but its definately there, and has some good kick to it.
Ive tried them with jumbo pads, but I have to say, other than the discomfort factore, the bowls have a much better sound.