I can understand the disappointment, especially when we're talking about a device made specifically to be used for self-defense. I once bought a new XDs that was a complete jamomatic until I sent it in the Springfield Armory for repair. Afterwards, it ran like a sewing machine.

There are bound to be a few issues in any product with moving parts. There have been well over 1,000,000 shields made. Most of us have found them to be reliable. It's impossible to extrapolate the numbers of them with issues from the small sample found here. It is concerning that the problem seems to appear here as often as it does.

So, this is a known issue, with a known cause and known fix. Yes, disappointing and inconvenient, but at least the manufacturer will stand behind the product and make it right.