How about you guys TRY playing with the Wii U Pro Controller? Am I the only one here who has experienced the transition from GCC to Classic Controller Pro (CCP)? It's not hard guys, it only took me a few days to get used to the CCP. If a GCC is not possible, you guys need to learn to adapt to the new controller. Also, I doubt the GCC will be compatible with Smash 4 unless the game is programmed with the GCC in mind.
Until you actually try it, AND ACTUALLY TRY TO ADAPT, don't make up bull**** saying Smash 4 is unplayable without GCC. (Well, I haven't seen anyone here say it is unplayable yet, but I HAVE in another thread on another forum. But some of the people here are complaining about how they hate the layout of CCP and Wii U Pro Controller)
I still play Brawl with CCP consistently to this day, and if necessary I WILL adapt to the new controller.