I was wondering if that would be a good idea. I have many glocks, 5 different glocks to be exact, and i have over 20mags per gun (dont ask why, it just makes me happy knowing i have that much...) but recently ive started buying a few 33rd mags for both .40 and 9mm versions. I usually keep about 15 of my G23 mags loaded full capacity with PDX1 for when SHTF. But I was thinking, why not save having all those mags loaded and load up a few 30 rounders and save space while having more ammo at the same time. What do you guys think of this concept? Also, since the 33/30 rd mags are longer, would it hurt the spring if i kept it fully loaded for say.... 1-2 years?