My micro-revisions are small things, I notice that a set of pillars are somewhat off kilter, and kill the aesthetic, so for me, my micros are left to when Im bored, and dont want to mine, or notice an issue, or the structure feels off, say I could move some circuitry (looks better), or a zombie spawns (kill said zombie, add torch), a prime example is my inability to not make tunnels and maintenance halls for the purpose of checking the lines, or the stored energy, or just for an uprgrade...
my macros usually involve creepers, or one experience, I had just completed a solar array powerplant, with many MFSU's, and it ended in three transformers putting service lines out, HV, MV and LV, but alas, my poor planning made it so that my wiring invaded the walkway, at that point, I gave up, and deleted the world... now I'm on servers