I think I understand a bit more about the game now, though.
I already knew that everything revolved around excess points, if you spent more than 5 points where you didn't physically get points for that spending (so 5 excess is okay, any more is not) you were not going to win.
However, because it's 3-1-0, winning a zone matters 3 times as much as securing 2nd place, making the 5 points excess essential to gamble exceeding if you want to win.
This contradiction makes it very much dependent on guessing what others will do if you are to secure victory and that takes multiple iterations with the same people.
If I were to rematch these 2, I'd start in a 3-3-2 formation, exactly like I did the first time around. Then, in Round 2, I will merely make the 2 into a 3 and use my remaining 3 to either position in somebody else's stack who is low (forcing them to need to push more the next Round, Supadudz would more likely be a target for this than Oromagi) or if everyone had at least 3 in their things, I'd put 2 in one without any, to secure that 1, and then 1 on one of my 3's to make it into a 4 (because I'll end up needing to do that anyway).
The aim is to win 3 zones and have 1 while negating an extra 1 point for the opponent that is ahead.
The lesser aim is to never win less than 2 zones and never have less than 4 extra if only 2 zones are owned, which is the same overall score and is optimal if the other 2 are hyper-defenders/attackers investing into winning zones.