That's really weird. If you're filling them the same way, with the same juice, they should be acting pretty much the same. I can't imagine what the switch could be doing that it wouldn't do to all of them.
Do you have access to a multimeter to check the resistance? The only thing I can think is that the burned tasting ones are deviating way low in their resistance. Smoketech cartos, IME, aren't as consistent with their resistance as Boges. They tend to vary +/- about 0.3ohms. Still, that shouldn't really be enough to make them taste burnt unless they're below even 1.4ohms, but it's the only thing short of being too dry that I can think of.
I assume you're getting plenty of vapor like the first one, except it's burnt tasting? The only explanation is the coil is burning too hot or the filler's too dry. I seriously doubt it's anything to do with the switch or it would affect all of them. Besides, the e-Power is unregulated. It can't give you any more voltage than the battery puts out.
This is one of those cases where it pays to have a meter around. You can find out what the difference is between that first carto and the others.
Do you have access to a multimeter to check the resistance? The only thing I can think is that the burned tasting ones are deviating way low in their resistance. Smoketech cartos, IME, aren't as consistent with their resistance as Boges. They tend to vary +/- about 0.3ohms. Still, that shouldn't really be enough to make them taste burnt unless they're below even 1.4ohms, but it's the only thing short of being too dry that I can think of.
I assume you're getting plenty of vapor like the first one, except it's burnt tasting? The only explanation is the coil is burning too hot or the filler's too dry. I seriously doubt it's anything to do with the switch or it would affect all of them. Besides, the e-Power is unregulated. It can't give you any more voltage than the battery puts out.
This is one of those cases where it pays to have a meter around. You can find out what the difference is between that first carto and the others.