Tournament Ruleset Ideas

[Pusha]

Ignoring everything else you said because this is really what I was arguing for letting teams have, the modes can be locked in, just let them select the maps for which they want to play on those modes. Like for the grand finals, each team alternates between selecting the map for games 1-8/1-10 and then the last game is decided at random from remaining maps

That is a good system, but don't disregard set rotations just because you aren't used to them. They are just as tested and proven as striking systems.