Sol,
I can see the logic there, but if I lived in a country where a full bore pistol was an option I wouldn't be leaving mags loaded for long, I'd have two or three sets of mags (or more) for competitions & rotate the mags left loaded on my thrice-weekly evening visit to my local range
If I seriously wanted total reliability then I'd keep a snub nosed revolver as a backup, or a second 1911 for "New York Reloads" in the event of a failure
ATB,
Nick