I installed it into my SSBU GameCube controller and it fit perfectly. I haven’t tested the switch connection yet but I’ve been using it on my GameCube with the wireless adapter and on my PC to play Rivals of Aether 2. In my testing I haven’t experienced any noticeable input latency. I’m about to go into some gripes I have with the kit but I just want to say I fully recommend it, even without my complaints. I only have 3 small gripes with the kit. First gripe is I couldn’t get the Pc Bluetooth connection to work without the Game Cube Wireless Adapter. My PC would connect to it but not register any inputs. My second gripe is that you have to do some soldering to retain the rumble functionality of your GameCube controller. I’m experienced with soldering so it wasn’t any trouble for me, but I can see people struggling with it. My last gripe is the charger for the controller is a very small and thing barrel jack instead of a modern standardized format like USB-C. It was probably a space issue since the port for it takes up the hole the old cords used to come out of, but I would’ve rather had a small cord with a USB-C port popping out than having to deal with the included barrel jack.
