I have a question about FTP testing. The past week (less than a week) or so, I've had a slight cold going on. Nothing too bad. I seem to be at the tail end of it. Last week was a rest week for me, still riding of course, but total time on the bike pretty much halved than my normal. Saturday I was feeling fresh (or so I thought), so I tried to do an FTP test. I try to do 1 test every 4 weeks - during the easy week. I have done them on the first day back to a normal riding schedule though (Mondays are my off days). Saturdays test resulted in me quitting the 20 minute test 10 minutes into it, and just doing an easy zone 2 spin for the rest of the hour, instead of needlessly stressing myself any more than I have to. Heart rate during Saturdays test just kept drifting up, even halfway through was drifting up towards unsustainable, and my RPE & power seemed to be getting harder and harder to maintain, even reducing my effort for a minute didn't help. Once I slowed down to zone 2, it took the rest of the time of the test (10 minutes) to get down to lower zone 2 heart rate. Pretty unusual for me. :-( I hate being sick. So, my question is, I'm feeling better each day, I'm wondering if doing another FTP test tomorrow would be a good idea, or just skip it entirely and wait till next months test to re-evaluate fitness/training zones? This is for cycling specific training, if that matters.