I have to ask a question to the OP: do you own an Aveo? (I know it may sound dumb, but some people around here own other model vehicles similar to the Aveo)
The reason I ask is, I have bought nothing but "premium" wipers. I had read (I can't remember where) that it is common with Aveo's for the middle portion of the window to leave a streak, where the arm would scratch the windshield had the blade not been there. I, too, have this problem (I have Rain-X Latitude blades). I have not yet found a workaround, but hopefully I can. I presume it is from a lack of pressure from the wiper arm since, for me, it is only on the return "swipe".
So, I wouldn't say it is the wiper, per-se.