2v2 Balance...

Is non existant. I play T a lot on 2s to just do a 3rax Stim Conc Shells, I rarely if ever lose with it.  Your best bet is to 3GateRobo every game. Focus on Zealot Sentry as a defensive mix early on, defend at your ramp with forcefields and then add immortals as you get the tech going. You cant really play greedy if the Terran is doing an early push. [well, you can. But I wouldnt recommend it if youre already having trouble as it is]