SC5 does not work with 14500 and never try using it with those cells.Well, I don't know about the SC5's. Those used a different driver from the start, optimized for 1.2v sources. So, I'd be nervous about using a 14500 on those drivers, and I'm not going to be the first one to sacrifice my SC5 to find out.
But at least on the SC53 and H53 models and their variants, the 14500 works okay, provided the reset you mention.
All other SC5x are good to go.