The only thing I wanted to mention is that once you start ego farming it's probably a good idea to keep your ego in check relative to your willpower, or more accurately your MA. If you have mental mirror then feel free to go wild, but esper assassins scale with your ego so if the modifier gets higher than your MA then sunder mind and confusions will start to hurt, especially if they fugue + sunder or chain a confusion into sunder.

It's definitely better to have a good balance of the two rather than just going hard into ego. I learned that the hard way. It might still be doable as a sort of early rush to proselytize and get infinite stats, but you open yourself up to getting fucked a lot faster.