I've heard the internals are copied from TM... any idea what may be causing the 2 shot burst?
Is it just double feeding and firing 2 BBs in one shot? Or is the piston moving back and forth twice with one trigger pull?
EDIT - Perhaps there is a flaw in the circuitry, causing it to think you've released the trigger and depressed it again, even though you haven't? That's assuming it's not double feeding, and the piston is cycling twice...
"And that's how, with a few minor modifications, you can turn one ordinary gun, into five guns." - Moe Sizlack