Well, If you are pausing your training plan due to illness, business travel - that is not what I’m talking about…
What (I think) I meant by this, is if that there is too much intensity in your progression such that you are failing a bunch of workouts…literally stop what you’re doing. And do something like:
Day 1: Sweet Spot
Day 2: Sweet Spot
Day 3: Endurance
Day 4: Off or Endurance
Day 5: Sweet Spot
Day 6: sweet spot or endurance
Day 7: Off
Once you get yourself up to 3x20 at sweet spot, resume your plan…but be aware of how the intensity bogs you down.
Me, personally, at 45 years old…I will do only one Vo2 workout a week. On the off chance I do 2, it will be for a specific reason (trying to raise the roof) but then I will adjust accordingly the next week. Oh…and if I do Vo2 workouts during the week, they will be different types of Vo2… for instance, I will do 4x6 at 105% FTP60, and then do my other one with something like 30/30s…so I’m touching both ends of the intensity spectrum, without driving my fatigue through the roof.
Focus on filling out your “time in zone” vs. worrying about raising your FTP…and when you reference your FTP, make sure it is a power you can truly hold for a minimum of 45 mins. Ideally it’s your FTP60.
If you want to know what your FTP is, listen to any of a myriad of podcasts with Seiler…he says it over and over again…your FTP is the power you can hold for an hour. Period. And adhering to this method will prevent you from over-training if you follow a thoughtful plan.
If you want to follow TR ramp tests as your FTP marker, cool. But then take the ERG and set it to that number and make sure you can hold it for a minimum of 45 mins…and hold it as long as you can. If you can’t hold it for at least 45 mins. Use the TR FTP number to calibrate your Sweet Spot, and go until you can hold 3x20 at 88% or - even better - 3x30 or 2x45 at 88%. Once you can do that, try your hour power again and see if you can hit your TR FTP for an hour. Once you can…test again. Rinse and repeat.
I call this method “raise the roof/furnish the home” - and it is based on N=1
This is probably more than you asked for.
Good luck 