Are there Boge knockoffs? It is either one or the other. Either there are Knockoffs or they have the worst quality control imaginable.
When I get a good one, it is the greatest. Last a week long and draws good right to the end. Then others I have gotten seem to last a day or two before they start tasting burnt or draw so hard that I just go ahead and replace it. I'm a tank user so it is not like I mistreat some of them. They are kept moist.
Do you think you get better ones if you pay a more premium price than if you get them from the lowest sale you can find. (7-9 for 5ea vs. 4-6 for 5ea)