Thanks for the concern, Leaford. I can't say I have extensive experience, but I've used these batteries since early February. The new white one definitely doesn't last nearly as long. I'm thinking more like 65-70% at this point.
Also, thanks for the information about the logo. I always thought the other way made sense, for the same reason: right-handed person holding it in their right hand. FTR, I always hold it in my right hand. Apparently I'm an odd right-hander.