myshkin, as much as i love my matte black w/ blue LED Ruyan 401's, i really do have to agree with you. I have made sure i'm topped, charged batteries completely per instructions, made sure the cart wick is seated on the atomizer (there is a bit of play, when you top off and reassemble everything, make sure you poke up through the hole of the cart to seat the wick better)... but still, it's not a hit monster.
I really like too many things about it, excellent cart and battery life, nice flavors to all of my juice, very classy, incredibly efficient and well made. But, my super minis KILL IT as far as vapor and throat hit. My wife and i had a smokeoff last night, her with an NPRO and me with my 401, and i had to put my tail b/t my legs so to speak (and she's just got her technique down in the past few days)..
SO, i tried my npro which was on my nightstand, and, it was a whole other animal again, just mopped the floor with the 401 as far as vapor/throat hit.
I still find myself taking my 401 everywhere and using the npros for backup, so that does say something...