I modded one of my stock controllers to have two scuf-style buttons on the back. The left one is A and the right one is B. Thank you Home Depot. I also got some blue chromed abxy buttons and triggers, as well as bumpers and a D-pad. I changed out the LED to be blue, as well. I also installed some black domed thumbsticks. It was a fun project and the controller is great. I dont have to do the claw technique anymore. I only wish i had wired in the X button so that i can shoot and revive in trials more easily.