I put the TTI versatile basepads on a mag and took off the magwell to test over-insertion. If you press up and release the slide, it locks open. This means the basepads allow over-insertion of the magazine feed lips. This is the same problem I had with a Canik Rival-S, which has now been fixed by Canik in newer models.
If someone doesn't care and wants 4 flat black TTI basepads and springs, message me.