Some of the stores that I frequent are out of amazon gc's or a specific brand of vgc/mcgc's. Usually if I ask the manager if I could take a few unloaded amazon gc's to load at another time/store, they won't have a problem with it. But has anyone else tried this and run into problems during loading?

eg. Taking a vgc from walmart and loading it at another walmart or even safeway? (all the while making sure its a brand that both stores carry)