I always ran mine like a left side charging handle, manipulating it by the latch. I've never had one break on me, but I've had them get loose enough they would sometimes pop out while firing. I don't know if it was the retention spring wearing out, or the latxh pin but it's not been a problem since switching over to BCM's.
If you do the whole unshoulder and peace sign grab thing instead, you probably won't have to worry about it. I prefer to keep the weapon in firing position, but I also follow forward with the latch depressed so as to not wear out the detent in the upper. Not riding the chargine handle, but following it. Uppers last a long damn time but nothing is more annoying than the detent wearing down and the chargine handle humping your nose while firing.