A904 TF-2 kit Orifice plug 3rd gear; Yay or Nay?

Yeah, after consulting the instructions, I won't install it. Thanks!

So your instructions say not to use it in a 904? As I mentioned in my PM I'm not really a 904 guy, have mostly only done 727's in high perf. apps. Just looked at the Trans-go instructions I have and it tells to install the orifice plug. Doesn't say anything about not doing it on the 904. I wonder if they've changed some things? What is the copyright date on your instructions?