Bullshit. Its not a bug or a glitch or a hack. And they wont ban you for it. Its just a shifting technique where you downshift, quickly upshift then downshift again. If you are fast enough everything is still in range. Some cars work better dbl shifting and some dont. All the drag editions were selected because they dbl shift easily. Every notice how none of the drag cars have great acc stats? the were chosen to receive drag editions because you can dbl shift the hell out of em. the exception is the cinque and its not a cheap vehicle, its the 2nd most expensive one.