To answer what I think you were looking for originally, the pattern of Build is that each Tuesday is a similar type of workout, but building in IF. Tuesday week 2 (MV) is 90 second intervals at 120% (0.86 IF), Tuesday week 3 is 90 second intervals at 122% (0.87 IF).
So maybe Tuesday week should be a similar, but slightly lower IF. Maybe Baird +5? That’s 120% intervals but only 1 minute long. IF is 0.83.
Then you keep up the “build” concept as each Tuesday gets harder.