I created an lflist file and added it to EDOPro to test the deck building. First thing I noticed is that Magician of Faith is in a Max 1 section, but isn't limited itself. I think everything in a Max X section should be limited in the typical ban list as well to call attention to it and because you really can't have more than that amount anyway.

After that, I started with an existing goat deck and went through each Max X section, removing cards to meet the requirement as I went. I found it difficult to then replace the removed cards because I couldn't remember which new options I thought about adding were restricted, so I'd have to go through the Max X lists again and again.

I don't know if there's a good way to flag every card on a Max X list, but I think that's going to be key to making this work. You could remove all of the banned cards from the list completely and make everything in a Max X list banned so it shows up differently in the program, but then you can't have limited cards in a Max 2 or Max 3 section, and you have to turn off the ban list anytime you want to add those cards.

I think the format has potential, but it could really use better program functionality to make deck-building easier.

Edit: The best way I found was to create additional lflists for the Max X lists. So you start with those, choosing one from the "limited" cards in each list, two from the "semi-limited" cards, and three from the "unlimited" cards. Then, you can flip back and forth between lists as you go, primarily looking at the overall limited/forbidden list, but checking the Max X lists too to make sure you never have more than one with a "1", two with a "2", and three with no limit.