Something that could be completely optional to implement into leagues: having the ability to change how long individual players/teams have to complete their turns.
So player A might have 2 min turns while their opponent player B has 3 min turns. In theory this is a handicap to player A.
Perhaps this could be implemented in a couple of ways.
Firstly, you could make it part of the inducements, which would obviously/potentially aid those teams at lower TV. It would be a costly inducement but worth it...a player who is rushing their turns may make more mistakes and give the underdogs more of a chance. They might not but the option would be there.
Secondly, you could make the duration of turns inherently linked to actual races. So in a league where this was implemented, for example, ALL dwarf teams would get 2 min turns, ALL Wood Elves teams 2 1/2 mins, ALL Vampires/Goblins/Halflings teams 3 mins.
Some teams do require more thought to play [not a dig!] and in a handicap system they should perhaps have more time to do so. So in a mirror match both dwarf teams would be playing 2 min turns and the inducements would still be in place to aid the lower TV team.
Dwarves v Vampires would be 2 mins v 3 mins, and so on.
This would be a fundamental shift I appreciate and would require much thought/effort to implement.