[Master Belisarius]

I have used your approach too, Atraikius.
Playing as the empire of one of AI files that I did (Aquilaeian, Pyrochette, Tessellate), usually can play with lot of automated things without scream!
Of course that always I have controled my fleets. But can let without big problems, to the AI manage most of the planets, manage the research tree, and even, design most of my ships. Then, can adjust what I want.

But think that's only valid for SE4, if you really know very well the AI files that you're using.