At the old times (before the update of the academy players), for the most expensive players it was almost a guarantee that the higher (token) value players were very fast trainers.
Now it's not sure.
I have an example here #385
https://forum.topeleven.com/tutorial...ainers-39.html
were my 14T player isn't a 1st class fast trainer, but 2nd class.

Meaning the 1st gets 5 skills, the 2nd gets 4 skills (avg/training).

But still he isn't slow trainer.
Some more examples of academy players here
https://forum.topeleven.com/tutorial...e-help-me.html

tips
* if you want to add sa, give one to one, not penalty specialist. It's better.
Gonna cost about 40-50 greens.
And do it now, not after giving skills to quality.

** If you re gonna make power-training, avoid to use him in the next days.
Usually hard training players don't perform well and I guess you have some critical games ahead.