I bought a glock 29SF used recently as my second Glock. First was a G19 Gen4. When I insert a mag into the 29 the top round slips past the tapered end and can cause failure to feed. I have four 15 round and two 10 round and it happens on every mag. I went back to the G19 and I can not make this problem happen with that gun. This is my first 10mm. I registered here just a few days ago to ask if any other G29 owners see this. Here is a video of me demonstrating the issue, sorry not great quality: [ame="http://www.youtube.com/watch?v=K4xqRhkFmYI"]MINI0015 - YouTube[/ame] The harder I insert the more likely it is to happen and the more rounds loaded increases the chances also. You can see I am inserting hard to try to force the issue for the video. But I should not have to baby the mag in regardless. Appreciate any feedback.