The fun part is I have a 3 star starter that almost gained a full star in just 2 days... Not sure about the mathmatics, but he's constantly the MoM, today I was looking more carefully and he gained 8% shooting and 8% drible, plus a couple of other %s here and there. Still the players gain a lot less from training/playing, as far as I can see. Maybe this guy is a "FT".