dubstep-tune with the tightest bass around?

[izc]

i was just wondering what everyone here would reckon as the dubstep-tune with the tightest bass... so this doesn't necessarily have to be your favorite tune nor the tune with the loudest bass, but the one that manages to build up the most pressure from (sub)bassy frequencies

to make a start, i'm personally quite impressed by hatcha's productions, for instance "10 tons heavy" in collaboration with benga (planet mu 164) or "highland spring" together with benny ill (tempa . and then, coki's "tortured" (tempa 24) is also not bad, of course...

any other tunes?

chris