My rubber *added(inside the coil!) keeps getting ripped slightly when pulling it off, is it ok to still use it since it's still insulating or should I just replace it to be safe? Seems to happen very easy, 2 out of 3 so far. I think the coil on the inside is ripping it slightly when pulling it off. It is a horizontal rip as well so no chance the coil could slip between it if that helps. I threw one out already, seems like I'll go through them fast if I keep doing so. mod has short circuit protection also.
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