I’ve had good luck with the original zippo insert. I just picked up the butane version but haven’t tried it yet. My only initial complaint is I have one “armored” zippo case that the butane insert is loose in. So loose, in fact, that it turned upside down, it will almost entirely fall out. The original lighter fluid insert works fine.Just recently purchased one of each (butane and traditional) inserts to see which I like better. Will test them out today. One thing I already see with the butane is there is no flame adjustment and it has a pretty big flame.View attachment 13751
Either way, I look forward to trying the butane version. Seems like a good option.