Yes, I'm guessing the older ones were probably made somewhere other than a developing nation churning out to a base spec.. .
I just had duracells leak in my Guitar Hero guitar, I thought they were quality batteries - maybe not.
Over the years I have found Duracells are not as good as people think, I have had several of them leak, luckly not in my pinball machines.
I definately would not recommend using the standard Duracells in any pin.
