LeMa- Have you seen an increase in training after a game with high pressing even if you watched it? Interesting, I haven't thought about that. I will look into it. I have my self for example wondered if there is a slight gain in the first training of the day. Sometimes it looks like it, but I haven't tracked it.
I wouldn't worry BTW, the "loss" is very marginal.

I am also with you on condition loss! But with the exact same arrows and orders except passing, with my team, the result was 18.5% condition loss on avg over 15 games last season, and 24.8 with high pressing over 13 games.