I literary just posted something about this
Here.
Also a HUGE DISCLAIMER!!!
!!!DO NOT USE LOW RESISTANCE ATTYS WITH YOUR BLU!!!
I burned out 5 batteries this way. The problem is that the battery's power the atty through a POS transistor. This transistor can not handle the higher current from the lower resistance atty and after a very short time the chip will fry. It will work for a while but then suddenly the battery wont work ever again.... Which is the primary reason I built my first pass through (explained details in the above link on proper wattage) and then lead me to wanting a wireless vape solution which lead me to build my Tekkeon Mod (MP1860A) Which runs on two 18650s in series each providing 2Amp Hours (can pull 2 amps for an hour at 3.7 volts or 1 amp for 2 hours ect...) Here are a few pictures of my mod.
It also doubles as a USB Charger and flash light. (I moved the led to the other side) I would recommend 30 gauge wire for this mod it makes life so much easier. (You should use 3 or more strands for load distribution on such a small wire)
Also as far as awesome vapor production goes I would highly recommend a 901 atty with a 80/20 VG/PG base with 20/80 Flavor/Base mix. I can make clouds so thick you can not see through them. If you do decide to make your own fluid, I do because of the hue cost savings. Here is my favorite Recipe which I created based on a mixed drink called Bruised Heart.
Bruised Heart (6%)
Ingredant Drops Percentage Custom
Peach 21 Drops 6.36% 13 Drops
Cranberry 21 Drops 6.36% 13 Drops
Raspberry 21 Drops 6.36% 13 Drops
Ethyl Maltol 3 Drops 0.91% 2 Drops
VG 211 Drops 63.94% 127 Drops
PG 20 Drops 6.06% 12 Drops
Nicotine 60mg 33 Drops 10.00% 20 Drops
Total : 10.0 mL Total : 6.0 mL
With a 901 and this mix you can blow clouds you can not see through ;-).