I don't know, I got better results with the AT follower. The rounds would jam up in the mag and now even flow up before.
I figured the legs were cut off because of the floor plate angle. With the AT follower with full legs, I get like 8 round in. 9 tight, and I have to force the 10th.
I have 2 different kinds of mags, and the one that worked better stock did not have a cut follower leg.
Meanwhile, if you lube you mag, only use a touch of grease inside the nubs on the feed lips. That might help.
Don't lube the whole mag, it'll be like glue for fouling and the mag will muck up right quick.
Mags are designed to run dry. Often the paint on them is designed to be like a dry lube.