My opinion is that if you're going 2 tc boom with atty, you should take advantage of the slow eggy to up classical at 6:25, with a similar 5:50 BO, only with an extra vil
I play kronos as main atty god. So when I'm up against eggy, i play based on the map.
On med, always win sea early. If you know how rush 4:40 on med with atty (kronos has deconstruction which immidiatly puts you at an advantage) then do so. After that, take out towers. Then just raid/food starve. Save 1 deconstruction for the migdol. if you loose sea for some odd reason, atty can make great recoveries
Krushing: only do so vs a ra. Set will shift you and fight you with converted animals + priests. isis monuments make destroying the temple pointless. when you krush a ra, do it with 5 vils. if you do a 4:00 6 vil krush, the consequence is that he will have made more houses around towers. (my friend does a 3 vil krush, can u imagine? and it works too)
Isis is the worst eggy god for an atty to play against. Oranos shock wave is only useful really in classical, and can't be used with the monument (not to mention no troops in early game) and the monument makes deconstruction difficult. I suggest that vs isis-->
-->on high hunt maps: go standard 4:30; murm + turma + 3 prom (don't AQ temple) raid!!. valor over 3 oracles + vil. dont forward base. this forces the isis to make priests which cost gold
--> on low hunt maps: go 5:07 adv and food starve. go 2 cntrbrax turma AQ for mass raid; optional: take tc while upping with last vil
so basically raid vs an isis. dedicate 1 murm to explore every part of the base to watch for food (why murm and not turma? because murm kills oblisk). this will definately slow down the fh, and atty have a good recovery so you can still fight vs isis in classical