Thanks for your feedback and support. Glad to hear my mods fit your playstyle!
Well, I am not a fan of extra tiers neither. I do not feel the "fun" of handling more kinds of resources and more complicated production chains, especially if players are just using bots everywhere. I uses belts and inserters/loaders only, and I feel the vanilla logistics challenge is just the right level to me.
I feel my Schall Machine Scaling is single-handedly enough for this kind of production purpose, actually I feel this is already an overkill.
Another involving extra tiers is Schall Endgame Evolution, because I feel late-game combat is too easy. Laser turrets and PLD spam... boring! So offering some tougher target practices, with different types of weapons.
I feel my mods are not popular enough (the most downloaded one just have barely two thousand), so I am not setting up a general page on Factorio forum at the moment.
But if you have any comments or suggestions, please post here. I check these discussion sections almost everyday.