@m32k wow, that's crazy! If that's the case then:
a) Do they publish a list of authorized equipment?
b) Where can you download/obtain that list?
c) Do they regularly update that list as new equipment comes out?
I suspect the answers are "no", "nowhere", and "no".
Most importantly:
d) Does anyone actually pay attention to this POH directive?
I can't believe my eyes that this is in that POH. I doubt you'd see anything like this in a Bell, Enstrom, MD, or Sikorsky POH. I'm truly interested to know if that is the case or not. It's definitely not in any Robinson POH.