I experienced the exact same thing and I’m doing the exact same approach you are describing. It works amazingly. Although maybe one difference: I got rid of ADS before.
I still do the Vo2max training blocks highly polarized with 3 sessions of Vo2max in two weeks plus the rest in Z1. Then I need a recovery week.
The Z3 block also highly polarized. I start to add ME here as well.
Then the Z1/2 block where I use Z1 and Z2. And I keep ME till 1 and half weeks before my goal event.
Try it, it works!