Average condition down after Stretching training is 3%, but it is actually between 2-4%... When condition goes down 2%, players gain less than average skill progress and when it goes down 4%, skill gain is above average... Same is with other two types of training... 4* player who can reach 20% of skill progress with normal Stretching training is considered fast trainer (16% if he is 5*)... Those who can not reach 20% (16%) after numerous Stretching trainings are token free slow trainers...