So I play Smash competitively and some tournaments ban wireless controllers. Since I hate using the GCN controller for Smash, what is the best device out there for using a Classic Controller Pro and/or a Wii U Pro Controller through a GameCube port? I'm looking for something that would work both on the Wii and Wii U. If it only works on the Wii, I would consider that product as well. It must have ZERO added latency. I can't have frames missed on attack because of weird input errors or lag. Edit- If anyone knows how to get a DualShock 4 working through a GameCube adapter port, that would be some incredible information as well, but I doubt something like that exists.