Heracross drop to UU may also help to rise one pokemon, which earlier was almost non-existent. This pokemon is Dusclops. For first it can handle every single hit without problems except Swords Dance Flame Orb Night Slash (and CB Night Slash may be also troublesome). If Heracross as a Swords Dancer will run standard Close Combat/Megahorn/Facade, then Dusclops is FULL stop to Heracross, which is quite impressive. Weezing (or Nidoqueen) + Dusclops secures, that UU Stall won't be totally annihilated by Heracross, as with Night Slash Weezing/Nidoqueen handles it, without it Dusclops handle him. And as a last resort pokemon, Gligar may also work - at worst Gligar speed ties with Heracross, which isn't that bad is some critical situations. If Gligar runs Scarf - we have another good Heracross check. But yeah, Heracross is really interesting addition to UU, as he may force some players to be more creative in countering him ;).