Noob question here... say 1.5 and 2.0 dual coil carts work on my 5 volt box mod, which one is the better choice to buy/use? What are the advantages? Vapor, taste, amount of time the cart will last, etc... I just ordered some 1.5's from kick bass vapor (great price and shipping) and on the website it said they are supposed to work great on 5 volt devices.