Three questions:
(i) I am wondering about this too!
I some times get a huge premium development from the first practice of a session. (ii) Do you guys got a track of why and when that is happening?
I have noticed it twice lately, and one or two times maybe before that when I was new. The first time when I unlocked the Video defensive session. Every player that ran it got like 2+ positioning or 2+ creativity. So I thought that it was some kind of bonus from a new practice.. But then when I unlocked it on my twin account like a week later, there was no bonus.
Then just yesterday or the day before that, I hadn't watched a game with Al FC. Then in the first practice from the warm-up a bunch of my players got 2+ aggressiveness, 2+ heading and so forth.
(iii) I am starting to unlock some 3 whistle practices (I got 3 whistles on counter attack and pressure defense which seems very important). What is your advice going forward, to go evenly across the board going and upgrade a practice in each cathegory, or to only choose to upgrade a cathegory at the time to get world-class drills faster? And if so, what is best really? Defense? Offense? Physical?