[Next_rim]

Attack him before he attacks you. By the time his 40 roaches reach your base his base is half dead.

What timing is best to hit the zerg then? Assume he goes fast 3rd (8-9 min).

Cannons and forcefields.

Seems an obvious choice. Anyone have examples of good sim sity layout on shattered temple and metalopolis?

I would recommend 5/6 gate pressure in the midgame

What's the timing on 6-gateway push?

[Xeen]

Originally Posted by Next_rim

What's the timing on 6-gateway push?

10-11 minutes, but you shouldn't be aiming to kill your opponent - rather to force roaches and secure your third for the transition. Having a skeletal ground force makes you far too vulnerable to just being killed by mass zerg ground, and you want to fill zerg's supply with supply-inefficient units that can't kill Carriers.

Really, you could choose any form of midgame pressure (5gate robo/6gate/6gate robo/blink/etc) that creates such a situation.