DaveyJonesLocker - Comments

I have a Couple of Questions id Like to Ask if people have time to answer them???

1.How Much does tutoring a player change his stats ? is it just 1 stat or multiple stats or hidden stats and over what period of time?? ??
2.When you send a Wonderkid from your club on loan to another club will his stats change or just stay the same ???
3. If you have wonderkids in the reserves will there stats change at all compared to being in the senior squad?