Trouble is, that leaves me with little or no food for ground forces, so I'm horribly vulnerable. I could sacrifice drones, but then I'm not in a position to rebuild as quickly after an exchange.
This is where overseers come in. Instead of going bonkers with corruptors, I roughly match his viking force and send them in with a handful of overseers, which proceed to drop infested terrans in his tank line. If my opponent attacks the overseers, my corruptors get free shots in and will comfortably kill off his air. If he focus-fires the corruptors, they'll fight him to a standstill while my infested terrans drop among his tanks. If he unsieges his tanks to prevent them killing each other, I can immediately charge in the ground army that I still had plenty of food for because my overseers didn't cost any.
Looking forward to trying this one. In a year or so.