So, here are two links to subs here on ECF that deal with Printed BF's with dna 30's and 40's...no doubt the least expensive option around. The third link is a Google search I did for printed bottom feeder mods and it yields some sight that you can aquire some of these...
It's gonna be 6 months or so until I can get find the time and effort to deal with considering building one. I would love to just build one of mah funky flavor chasing coils and let a board deal with wattage for me...I'm a huge fan of regulated devices, but I've also become lazy and love the ease of bottom feeding!
http://www.e-cigarette-forum.com/forum/modding-forum/560010-printed-dna30-bottom-feeder.html
http://www.e-cigarette-forum.com/forum/modding-forum/659033-printed-dna-40-bottom-feeder-mod.html
https://www.google.com/search?q=pri...57.20468j0j8&sourceid=chrome&es_sm=0&ie=UTF-8
Thanks for the links. Not sure if i will have the skill and motivation to build one of these, but i will at least read up on them !