0G Light Launcher Mold Variation??

So I was messing around with my launchers about a week ago and noticed something really weird...
Now look at the gray gears in the center of the launcher and compare them.



It's a little hard to tell, but one of the launchers clearly has slightly thicker ridges that the other. Also, the one with "thicker" ridges also has more rounded ones as well, while the one with the smaller ridges have more pointed ones.

Also, it should be noted that the one with the more pointed ridges is TT, while the one with rounder ones is Sonokong. I do not know which ones are necessarily better, but I think that this is an interesting find because one does have ridges that are a bit closer together, which would theoretically give it more friction with the ripcord.

Any thoughts on this?