So what verdict did you end up passing on the 5160? Which blade did your brother get? Is there a separate post for the 5160 DART? (Sorry if I overlooked it ...)
I lucked out and got the s30v DART from SMKW, though TOPS had already switched to 5160. *cough* This was after I'd already bought the 5160 DART through my normal supplier. Heh. A year later, I still can't really tell the difference between the two, 'cept the 5160 looks darker. I don't live in a terribly wet or cold environment though. I'd like to try the s30v in some snow and freezing cold, just to see if the chipping-in-cold-weather rumors are true.