who the hell direct inhales anything, pretty painful experience
An awful lot of vapers do! It takes a little practice to get it right, but it pays off big time in TH and vapor-production. Ever wonder how those guys are getting those massive vapes in the videos? It's all about technique. This is one of the reasons that "manual batteries" are the most popular among forum members.
If you find your e-cig isn't performing as well as you would like, give this a try:
Press the switch and hold it while you draw into your mouth as usual. When your mouth is full of vape, continue pressing the switch, continue sealing the cart/carto with your lips, and
slowly inhale directly into your lungs. At the first feeling of a "pinch" (like you're going to cough if you continue), let off the e-cig and inhale normally. Don't worry if you do cough, it's not at all like coughing with a lung full of cigarette smoke.
At first, you won't be able to direct-inhale very much at all, but you will notice a big difference in the amount of vapor and in the amount of nicotine you get. After a little practice, you'll be exhaling huge clouds of vapor and thinking of lowering your nicotine levels.
It may seem superficial, but psychologically, a big cloud of vapor really does wonders for a lot of people. I didn't completely quit cigarettes until I learned to direct-inhale.
Oh, and
to the original poster, this may help you with the performance of your Blu.