Which Tekken Stick?

Hi guys.
I’m wondering which of the Older Tekken Sticks also have the PS1 Namco stick parts. I love the namco, I have 10 boxed in the collection as well as a Tekken 3 Stick which I’m pretty sure has the same parts. I’m just particularly curious about the tekken tag stick and the tekken 4 stick. The parts look similar to that of the namco (although Red as opposed to yellow of the Namco)…especially those flat looking buttons look quite the same. Any of you fellow namcoholics know? :razz: