Thanks guys for the expert advise. +1 to all of you!
. If I had 5 handguns it would be harder to empty multiple mags from multiple guns regularly.
Is there was a rule of thumb on how long I can leave a magazine fully loaded without any FTL issues?
Though I cannot say I'm 100% sure, but I was always taught that it was the loading and unloading that will cause the spring to get weak.