I have been wondering myself why the ball detent wasn't made a bit better. The mag's could be much easier to fit inside of pouches if they didn't have the large detent on one end. Also, the spring release is way too easy to accidentally trigger; causing all the balls to fly out. I am working on an easy fix for that though. Makes me wonder why they didn't incorporate it in the mags.
What I want to know is the size of these new mags, and what the differences are between them and t68 mags. I just bought a bunch of t68 mags, and it would be great if I didn't have to swap magwells on the field just to use the new mags. But w/e. We shall see what happens.