Datapoint...I was able to deposit a MG with PenFed this week. At first it didn't like it, I then zoomed way in (so the "corner" indicators on the screen were overlapping the MO a bit), and it took it. The next one I tried a few days later I couldn't get to take at all with the "amount detected doesn't match" error. But the ink was very faint. Possibly PenFed can work with strong ink quality.