I got some 440 from a friend recently and tried it out yesterday with great results. I haven't used the 312, so no direct comparisons are possible, but it really works great @ 3.7V/1.3 ohm coil/32g kanthal & COV bare nickel no res wire. As I currently didn't have a dremel, and wanted instant gratification, I followed poppa d's method of unravelling the ceramic into seperate strands first and torching them well before wrapping the coil. The strands seemed to fit into the ceramic slots just right.
With the pink sizing, it was certainly easy to see when the wick was fully cleaned off. Again, haven't tried 312, and this stuff does shed some of those little pieces when handling it, but it held together quite well during assembly after just a good torching.
Then, put everything together, tightened well, trimmed the strands to fit and fired it up on the GGTS. So good. No leaks after a day. Great draw. Clean, intense really pure taste, huge clouds, not much TH as I vape 6mg, but really good for me at least

. Wicks great even with all VG.
Very impressed, now to see about longevity...hope it holds up!
Really great vape though, I'll be trying this at higher voltages soon!
The 312's heat rating does seem like more than enough for our needs. I just had to share after I stumbled across some of the high-end stuff.
