Hardware Using a Classic Controller Pro and/or Pro Controller through the GameCube Port

[W.A.C.]

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.

 

[Clutz450]

Try this site (http://www.raphnet-tech.com/index.php). It seems to have adapters for just about anything. And if it doesn't, send him an email and see if he has any plans of making what it is you want.

 

[Big Poppa Brad]

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.

Hello there, just joined this site to respond to you bro.
I'm actually in the middle of making a DualShock4 Controller for my Gamecube & Wii.
I'll let you know when its all done if your interested?

 

[bootsector]

This is what you are looking for: https://www.kickstarter.com/project...-a-smart-open-source-retro-gaming/description

 

[Big Poppa Brad]

This is what you are looking for: https://www.kickstarter.com/project...-a-smart-open-source-retro-gaming/description

Not what I'm making my man.
But a fantastic looking bit of kit non the same.
What I'm making is actually a PCB the takes the commands from a DualShock4 & connect them directly to a Wii or Gamecube. No other connectors or junction boxes.