+1 Same here. In my case I had spokes that were too long. ARGHH!
I had one of those fail on the trail. As a matter of fact, it happened to be in the SATN. I went to add air, and it just ripped off. I'm very good about not putting a lot of force on the stems when I have to pump them up with the compact pump. On analysis once I got home, you can see the stem is super thin, and made of aluminum, so it's very weak. I have stuck with the standard Stan's stems since then.