It's likely that your O rings are of lower quality than the originals. Which is why using some originals may work. It's worth a try anyway certainly more worthwhile than trashing the atty. It seems if you don't find a solution and keep trashing atties, eventually you might have been able to afford an original depending on the number of clones you buy and etc. If you are otherwise happy, I'd say try it. I have only owned Kayfun clones myself, it's hard to shell out that much for a new atomizers.
I will say, based on my experiences with clones, many are serviceable, the occasional comes along that seems to be better than the original, or preferred, etc. However, for the most part when I've owned a clone and then an original, I usually find that the original is better in many ways, design overall, machine tolerances, and usually flavor. I have to say I haven't liked or gotten along with any Kayfun clone well enough to save up for an original, but I do have some fairly expensive original atomizers, and well, it is sometimes worth it and etc.
Anna
