That's why the 7 builder/6 tower strat is great. If you put them in the right spot, your vulnerable points, you can deter a huge portion of the tier 1 coming in. The concept is to defend your supply lines while you upgrade before they do. Sniping mana is the key here to keep them suppressed.
I didn't tech up very quickly in this video because I had alot of other things going on. If I didn't see an opening for Kirenna to go and wreck his base, I would have tecched up alot sooner. It just slipped my mind and I gotta work on that lol.