Good post. Every month on the first of the month I will swap out magazines in my P89. I know people say that they stay compressed for years without any problems, but I just feel better rotating my magazines. I one time had a GP100 that a small fleck of powder got under the extractor star and I missed it when I had cleaned the gun. When I took it to the range I could not get the dern cylinder to close with the ammo in! Finally did figure it out, but could have been bad news if I had needed the dern gun!