Originally Posted by
ridethecliche
TR has powermatch though? So the power meter should be controlling/driving the resistance from the erg in a sense.
Yes, if you connect TR to both the smart trainer and a power meter, it will do power matching. If TR wants you to do 200W, it will start by telling the trainer to apply 200W resistance, but it then looks at the power meter data to see if it is correct and makes adjustments to the trainer from that. The current power you see on the screen is always from the power meter.
You always want to use the same source to compute FTP and set interval intensity, as what you are using to perform the intervals.