Can I combine the various forms of Extra Effort in combat, or with an AoA?
No. As per MA, you can only use one offensive and one defensive option, and they don’t stack with other powerful combat bonuses. Specifically, you can’t combine All-Out Attack and Mighty Blows, and you must pay 1 FP per attack you wish to improve! In case you incorporate the simple concepts of Comitted Attack and Defensive Attack from MA, note that neither can use Mighty Blows. However, if you are familiar with Martial Arts, read the Designer’s Notes, which contain the Focused Fury perk – it might interest you.