With all the money and advertising backing it, Blu is the perfect gateway product for vaping. It has led a TON of people to kick analogs. For that, I love that little Blu devil. And, it can be a good little machine but does require some tweaks to get the most out of it.
Unfortunately, factory cartridges are trash and a complete waste of money. Steer clear of them. You have other, cheaper and higher performing options. Buy some juice and drip 3 drops on the atty. I can produce a decent amount of vapor that way. Or, you can take the road I did. Grab yourself some 510 Soft Cap Cartomizers, some high quality juice and screw those onto your Blu battery. Even better, they will fit in the PCC. The vapor of a 510 with the perks of a Blu. In all likelihood, if you stick with vaping, this won't likely be your last PV kit you purchase. In this case, the Blu will be relegated to backup status, but its not a bad backup to have.
Bottom line, just keep vaping. Whatever you do, DO NOT go back to analogs.
Happy Vaping!