I would go against visual improvement, I don't want this game to consume 20gb+.
Improvement in DoF would be very nice as I've yet to find DoF as useful.
Soton would demand fee around that in real life for luke shaw
under 18 players cost more due to the fact that they could be considered as home-grown when you buy them.
when they are 19-20 their price will drop (or rise if they're properly developed).
Try getting a feeder team to send the player to gain another nationality (Belgium, Croatia etc). That way you can sign him without work permit.
Please be patient, it's only 7 hours.
You can see the difference between Poacher, advanced forward etc in the tactic creator screen.
Defensive wingers are useful if you're facing an opponent with an attacking full/wingback. An example of defensive wingers are Park Ji-Sung, Ryan Bertrand etc
I think player value are based on how much time he has on his contract, wage, etc
If the player is playing at higher reputation & higher division, then his value also increase
player under 18 also has higher value (correct me if I'm wrong here)
don't get too disheartened with just one lost, how long have you been playing fm?
I might not be an expert but to play this game you need to do a lot of trial and error :)