Just loaded (or attempted to load) four 10 round mags for my first G27 shoot at the local range. Boy was that a chore - don't think my right thumb will recover for a few days! I have the +1 extensions on them but was only able to get the 10th round in one of the four. I did use the factory-supplied loading "tool". I realize a certain amount of magazine spring tension is required, but does it get any easier as the spring gets "broken in"?