i should give a prize to whoever can tell me what 2002 guard is...
anyway, i was playing today... figured out a few things about that swep.
firstly, its important you use that pimp arm to remove the base from their free knee, by pushing it forward, before you go for the sweep.
also, it turns out that the sweep can be stopped, but only if the guy posts on both his hands. its a non issue though, because at this point, both their legs will be in midair. you can easily use it to pull guard if you have to. you could probably even use it to transition into the pyramid..