The magazine question was do you have the problem with every magazine or just one in particular?
That's why there's no such thing as too many magazines!
If you follow the directions in the manual, feed problems are pretty much non-existant. As far as speed goes, it takes me (using the manual's method) under a minute to load a 25-round magazine. The key for me is to rest the bottom of the mag on a hard surface and pull down the button with both the thumb and forefinger (one on each side of the magazine). Trying to simply hold the mag in the hand and pull down the button with the same hand is an exercise in slow frustration.