#2
I think its a kill switch combined with a MASSIVE bend.
My Gear

Guitar
DEAN Razorback Shards
Wesley crappy cheap thing

Amps
Cheap Crappy Freedom Practice AMP 15watts
VOX AD50 Valtronix
#3
its a harmonizer set to raise a perfect 5th and you scoop the bar as you hit the note to get that depp "hiccup-y" like sound