Manual switch, thus warmer vapor is what provides "consistent" hit. Higher nic also contributes.
I totally agree with that!! My first couple of e-cigs were simple ones, just a regular 901 and 801. Was constantly a hit or miss thing.
Then I purchased a KissBox kit and also a Dura-C kit. Both these have manual switches. Oh my stars - what a difference! Throat hit all the time! I use 18 mg nicotine, may consider dropping that now.
Last week I purchased a screwdriver and am awaiting it's much anticpated arrival!