I do love my Squrared's but I must admit the quality of the wing mounts is a little low compared to the rest of the car. The holes arn't in the middle of the moulding and the material is very hard.
I'm assuming the wingmounts are of the origional mould where nearly everything else has been re-designed when the squared was produced.
If they were made out of a slightly softer plastic I doubt there would be much of a performance change but they would probably be more durable.
I made sure I didn't break a wing mount by buying three spare sets. its always a gaurantee that if you buy loads of them you wont need them

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