A few posts back, Harley asked about the long post sticking out of the bottom of the BF Fatty. I had to carefully go back 10 days ago when John turned over the prototype to me. The exchange went something like this:
John: "Clyde, before I give this to you, I have some important instructions to give you...."
My inner monologue at the same time: Uh huh. Yeah, okay. Gimmie, gimmie, gimmie, gimmie, gimmie..."
He handed me two o rings. A thicker one with 1/4 of it cut out, and a complete smaller one. The larger one had to be placed inside the 510 connection of the Grand, and the thinner one placed on top of it. He also stated it made it a bit harder to screw on the Fatty onto the Grand, but was essential for proper feeding.
At the time, I thought that was an unnecessary PITA, and I was wrong.
After taking literally all of three minutes to place the o-rings and fatty onto my (non vv) Grand, the feed is very precise on this atty. Quick squeeze drenches the wick (especially if it's folded onto the floor of the atty) and is sucked back into the bottle. Wow, it really helps when you actually follow the modders instructions. (I can imagine Redeyedancer smiling and shaking his head to and fro if he's reading this. Some things DO change, albeit very slowly.)
And, just in case you already aren't convinced I'm a total idiot, let me help you: I just noticed that when you remove the drip tip you can look down and clearly see the coil and wick! (Duh squared, possibly cubed.)
The additional o-rings appear to have three benefits: 1) it eliminates the slight seepage from under the base of the atomizer I was getting before from a hard squonk; 2) it eliminates the the need for hard squonking in the first place since it feeds much more easily than before, and 3) so far, it appears to enhance the auto feed function using the choke down and pour method of vaping. I say appears to, because the ridiculously long wick soaks up a lot of juice and can take multiple vapes before it goes dry. I can see why drippers love the regular version of this atty; it almost has that 'how many licks does it take to get to the center of a tootsie roll pop' element to it.
The o-ring installation doesn't work on my VV Grand prototype, guess the difference in circumference in the juice wells doesn't give the Fatty enough room to latch on with them installed. Normally, I prefer the VVG with anything due to it's adjustable constant voltage and larger juice bottle. But I'm really digging my regular Grand with a LR coil and o-rings on the Fatty, it's been a while since my polished yellowjacket got this much action.
Sterno, if you're reading this, try installing the o-rings if you haven't done so already. Worth it!
