@Arphaxad all training calculators do that...but the thing is that for advanced players this kind of calc's are not so helpfull.
Fast trainers gaining are the same no matter the position.
So we should find out how much a FT gains for 15% condition loss in a specific range of driil value.
Example for 15% condition loss a FT should gain aproxx 7skills per green if the drill value is below 30%.
6 skills if drill value is below 40% etc..
Τhe calc must show the final form of the player's attributes with the given restpacks each time
using specific drills.