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420time, if you want to vape traditional hash or bubble hash, the loose leaf cart is the one you want. Panasonic cgr18650ch batteries are one of the two batteries most recomended for the Cera, and out of those two, the ones that heat it up the fastest.
The new version of the Cera you refer to is just a lighter and maybe smaller handle. It is almost certain to have a better switch placement. In my opinion the current switch is ok if you stick a clear rubber bumper to it and use your little finger to hold it on. The new handle might be a while coming out considering that the e-Liquid cart took a good few months to revise.