Those don't really appeal to me. Seems like just another thing to have to clean. Taking off the atty and taking out the bottle seem like about the same amount effort. I guess taking the atty off might be easier on the go, but I never leave the house long enough that 8.5ml isn't enough. YMMV.has anyone got the soft 30ml refill bottles? the ones you screw onto the 510 to refill your equally soft squonk bottle
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