Alessandro wrote:We broke our heads over more than a second round qualifying stages with odd number of teams or bronze medal games with teams coming from different divisions in more than single occasions for days
But really all it takes is some practice and having simple rules won't hurt

Yeah, that's a level of complexity I don't know that I'll get into even. That's one of the perks of North American leagues I guess, ultimately they're not that involved or complicated (only two stages I guess -- season and then straight-forward playoffs, and no promotion/relegation, so no need to link leagues, etc). Self-contained, mostly.
I just wanted to encourage people to try it if they're interested. Reading the pages of this thread as you've gone along, it seemed so daunting as the pages of posts began piling up. But once I actually cracked it open to do it, I could flip between leagues and compare settings and logic out most all of it to get what I wanted. It takes some time, no doubt. I think I spent two hours just doing a simple new league, so I could make sure I didn't miss anything and to figure a few things out (it took me a while to figure out that a league needs a governing body to be playable, for instance, that was maybe my single biggest hurdle I came across).
Now that I've done it, it's time to go in and start seeing how far I can push things, and what effect they have on things already in the game. Adding whole new playable leagues is a big game-changer IMHO. And as people get more schedule matrices out there, it'll be even easier.
I used to spend so much time in the 2007 Pregame Editor trying to make things work or happen that were not intended, that honestly was part of the fun of 2007 for me. I spent more time in the editor modding things than even playing for quite a while (making a best-of global league, making NCAA Playable, resurrecting old leagues to replace other dead leagues, etc)
If I can make all-new leagues with this editor, a lot of other people can to. It just takes an afternoon say to hash it all out.