so the more I do the more green mallets I would need...If I only train like 5-6 players vs 13-17, I won't get more points for less people, right?
Yes just focus on the players you want to power train and only use 'candidate' players. (young 5* 18-20 year old quality ending in 4 or 9, or 6* scout age 22-24 quality ending in 4 or 9)