don't bother with special abilities. 50 skill points is worth 3.3 in player quality. Would you rather your player have 30 shooting ability or be a fk specialist with 20 shooting ability? Use the player with best finishing ability to take pens, best shooting ability for fks, best crosser for corners. I score over 20 goals a season from fks and corners. I've had specialists but I wouldn't go out of my way to get one. As for which young players train fast, rule of thumb for super fast trainers(age 18) is 2 million+ for 20 player quality and add 1.5 million for every 5 pts in player quality - viz. 3.5m for 25, 5m for 30.....