OK, we all know those Paul Gilbert and Shawn Lane licks where you play six note groupings with a pick-slur-slur-pick-pick-pick motion, but I was just messing around with another way on combinding picking and legato...
Basically, the idea is when you play three note per string scales, on each string you always go pick-pick-slur, and then keep that motion going across all six (or seven, or eight!) strings. It's got quite an interesting sound, as it can sound quite percussive or quite legato depending on how much you accentuate your pick attack.
The first guy I heard playing this way was actually my old teacher, Paul Reynolds, but I found out later that Warren DeMartini and Brett Garsed both do it a lot too.