I did this half way through season 1 to season two, I trained a MC to be a free kick specialist, it took a long time to do, and I ofton took skill points awarded to other players to help speed the process, He turned out to be a good MC, but the downside to it is after a few more seasons he is too many skill level or stars behind the rest of your updated team!., I kept him for 4 seasons and the last one he hardly played, I should have used the skill points spread over other players in my opinion, he just wasn't worth doing it. If you are going to splash some cash on extra training then yes it might be worth it, personally I think your better off going saving TOKENS and getting a scout. there used to be a Bible I called it on the internet by a legend player on here called JULY THE FOURTH and he explained it in great detail and his final thought was NO unfortunately I already was half way through by then so carried on and completed what I started, The bible has since been removed to great shame off some of us!!!!!!!!!.