Yeah, for me that was definitely part of the problem early on in BMU.
Trying to find a reasonable FTP has been a bit of a journey for me and it’s not yet done I was using the ramp test to set FTP before I did the Beginner FTP Builder plan, and I had no issues with that plan, so I figured maybe the ramp test was a good indication for me - though I did know the FTP builder plan was very low intensity compared to BMU. Given that I did another FTP test ahead of BMU, that put me at 289, but I found the Red/Yellow/Orange Unicorn workouts to be too hard at that level for me (always died in the last interval set), so I signed up to intervals.icu which set my FTP at 276 based on past rides, and I’ve been using that since. I set it to 276 just prior to the Purple Unicorn and still had issues with it. So I’m not done tweaking, but this week so far everything seems a bit too easy, so I’m going to wait until I fail another workout before modifying it further.
I have looked at the last two weeks of the plan, and yes they look very painful.
When I get enough of a rest I will do a 20 min FTP test, but I don’t see a good opportunity to do that until I’m done with BMU at this point given my schedule. I won’t be good at pacing it either, so I figure I’ll need a few tries at it to get a good number out of it anyhow.