I have been looking at this for a while now and just wanted some feedback from folks. I have been doing SSLV and just finished low volume 1 with 2 extra endurance rides added weekly. I am starting base 2 next week and I am currently thinking about switching the sweet spot day for an ISM zone 2 and adding 2 additional ISM zone two days for a total of 5 days training with 3 ISM zone 2 and then a vo2 day and a threshold day. I would set up a custom workout for the ISM days at somewhere between 65% and 75% FTP (tbd) and adjust the intensity to keep my heartrate in ISM zone 2. This way TR takes care of my intensity progressions and I manage my zone 2 progressions. Does this make sense or is there a better way to do this? My current goals are recovering my fitness from covid, and base work for the Cyclocross season.