Performance metrics really aren’t that granular.
The math may be precise to a decimal point, but your body isn’t a machine. 
With TL matched enabled performance gains will be tied to your TL increase over time.
To prove those gains you’ll want make breakthrough efforts now and then.
For example, ride the standard fitness test or a variant on a HIT day when you’re feeling especially fresh.
Ride entirely in Slope mode and adjust slope % to suit the effort required.
E.g, 1% during warn-up and rest intervals and increasing as high as 5% for the sprint efforts.
That will be easier than adjusting % intensity in AUTO mode (ERG control).
You’ll need to experiment during your first test to see what slope % works best wiih your trainer and the gear you want to remain in.