I am not going to comment after this but mooch has said the difference in performance is close. Your making it sound like we are comparing an efest to the Sony and that is not the case. Use what you like, makes no difference to me.First, calculate the total price of your vape setup and juice consumption, etc., including a set of 30Q batteries. Next, calculate the price difference between the set of 30Q batteries and the set of VTC6 batteries... immediately you will see the total cost of your vape experience is increased by not more than a few percent, which is completely justified by the improved performance that you know you will be enjoying for a very long time to come so don't rip the price comparison out of its context and don't skimp on your batteries.
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