Pairing options Bushido smart

Hello,

while starting Zwift and pairing the Bushido smart trainer I have the option between “TACX Bushido” and “TACX PWR”. What is best and what is the difference?

I have Bushido Smart and have never found any difference in what I choose. To be consistent, I try to choose the one called Bushido, but I really don’t see any difference. The Bushido reported power for me is pretty messed up anyway…