Well as SI went to all the trouble of putting training in the game I thought it was only fair for me to have play with it. So I did set up some training schedules that I though would work. I have no idea whether the players were better off on my schedules or the default ones though because I have no way to compare them.
Just on the point LFCfan made and I need to be very careful not to tip here, but crippeling you players is probably not a good idea unless they are incredibly good at heading the ball.