I would just use the PM on the kickr - that is what I do with my Kickr snap and it works perfectly and has done every ride I have done on TR in the last 15 months. I have a Favero PM on my tt bike - but I don’t ride that in the winter so I swap over to that for summer racing. Ideally you would want the PM to match so you can compare inside/outside rides but there have been some issues with Powermatch recently - and the Favero pedals seem to be an issue - BUT they seem very reliable outside.