Play tight in the beginning, but play your good hands aggressively. In the later rounds, unless you are blessed with a great deck, you'll need to steal blinds generally 1x orbit. Cards don't matter, just make sure you're the first one to open. (Preferably in late position.) 200/400 is, many times, the turning point of a turbo STT (esp. turbo).
If you are able to win a few of these, and you are confident enough in a normal $5/.50 SNG, switch over.
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