Nice write up guz. I like your coverage on the concepts and detailed explanations!
I would have to agree with the above the Thorzain style is very good apart from strong 1 1 1 timing pushes where you have to pull scv and if you manage to hold you are ahead by miles. But you have to use your mobility to your advantage, if you play this style you cant really be passive.
The other advantage to the Thorzain style is at the moment deflects the current meta game with both the 3 reaper opening and 5 reaper elevator hellion. It can also deflect banshee harras and pretty much everything else really.
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