Sooner than I expected, the mag springs wore in. The Uplula is awesome, but when I forget to take it along, the loading isn't too bad now. When the mags were new though? Pure misery without the Uplula!
I have a Shield .40 CA and it works fine with the 7 round mags. There is no way I can load them by hand even after 3 years. The mag springs are really strong.