Over kill.. Over kill.. Well, I actually like to go overkill in everything I can (for example, my Crash Landing has a 96x96 tree farm just for water and a 80x80 for wood and saplings (Which I will expand one more chunk as soon as i get the Machine Frames I need) but I think my worst overkill (which I actually had to dismantle) was a setup in Agrarian Skies which had one 10 blocks high smeltery for each kind of ore, fed by a farm with almost 2 thousand ore berries bushes (I built a vault for them, in rows, each row had 200 Bushes and if I remember correctly, I had completed 9 rows and was like at half of the tenth, but can't be sure). Then I had a 64k for each ore, filled, everything else went into singularities.. I left it all night and when I woke up the game was laggy as fuck, save and quit.. Then memory ran out everytime I tried to get in the save file again, had to dismantle it with World Edit to be able to get back to my world xD