I ended up writing MFT and Academy Sports regarding the mag issue. Never received a response from MFT- go figure. Academy did email me back, basically stating they would "forward the issue to relevant dept.", so essentially file 13ing it. I shop there mainly for ammo, as they tend to have the best prices in town. Won't shop there for accessories again.
I keep "several" mags for each mag fed weapon I own, so I do experiment sometimes with various brands. I've tried most of the brands that have been mentioned and generally feel the same way as the rest of y'all.
PMAGS are the best I've found (and 90% of my stock), with Troy mags running a close second. I only have a couple of Lancers due to the price, but they ran well too.
By the way, there was a deal on Troy 30 rounders at Midway, so those MFT's are now relegated to the Shit has hit the fan deep, deep reserve. I will take the MFT's out with me to the range next time I go and, if they malfunction, their next stop will be the recycling bin.