Yeah I do the same. I always do a plan with my sequence of the drills I want to use. With 19 yo I train 120% averages in the drills, with 21 yo I raise it 140% averages as it is still quite cheap then. So the best version of my player is with 21-23 years old.
With 25 again, I only do 120% averages again, and, like you said, I train a lot of greys. Because by then my player already has very good white skills to overall quality ratio and now I just care about him lasting longer so he can delay my replacement. Training a replacement for the first time is most expensive.
I also found pictures of the player how he looked after every training. I don't exactly know what I trained at which stage anymore unfortunately. I just know that with 25 I also trained a lot of grey and things like Piggy in the middle, Stop The Attacker, Hurdle Jumps etc.
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