I've had 2 sets of the CRG Arrow knockoffs. They fail at the mirror ball joint if you rotate them too much, the ball joint loosens/unglues itself off the shaft. Maybe you're supposed to loosen the screws first? But that would make repositioning on the fly a bit of a pain so I don't know. They also vibrate above 7k and they dont have enough glove clearance to fold them inward.
Now I got the Rizoma Reverse Retro knockoffs by Kemimoto which I like a lot better. They don't look as good and cost more ($35 vs $20) but I like everything else about it much better. Ball joint design is different, same visibility as Arrow, tinting to reduce glare, rock solid, and plenty of glove clearance to fold them inward.
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