I was not so impressed with the LR 510 tanks myself. Preferred the flavour of the regular resistance 510 t atties. It was better then the ego t atties IMHO. Though I have not tried the type b ones. Dual coil cartos are much better flavour IMHO and hold more juice. You can get slightly larger 510 tanks but they still only hold half what is in a dual coil XL 510 atty. The dual coils do go through juice and battery life faster though.
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