So I have a Dura Ace 9100-p crank based power meter. It’s crap. Everything I’ve read about these says they suck and they are not accurate. Particularly the drive side crank is poorly designed and is really inaccurate. This power meter came with my bike and before I looked into them I did my FTP Field test using this power meter. After analyzing my power on about 10 rides I’ve noticed that the power meter is pretty consistently reading around 60L/40R% . I’m pretty sure I’m not THAT imbalanced, coming from a fixed gar background I think I have a pretty smooth pedal stroke and a lot of people on the interwebs have said this is due to the design of the right crank arm on this power meter. With all that said, I’m selling this garbage power meter and already have a pair of Faveros Assiamo pedals to replace it. My question is, when should I redo my FTP field test? I’m going to continue to use the Dura Ace for my Zone 2 endurance ride tomorrow, then I have a rest day on Thursday and a 2.5 hour sweet spot group ride on Friday. Should I swap out the sweet spot group ride on Friday for a FTP test or should I swap Saturday’s 2 hour Zone 2 ride for Friday’s sweet spot ride and FTP test Saturady? Please help!!! I’m lost. I know we’re not supposed to test that often but I also know that my zones will change a fair amount switching power meters.