Mephisto V2 follow up:
This thing is a beast. I have some fairly breezy, fog making RDAs (Mutation X, 1:1 Infinite Dark Horse, Infinite CLT, Hobo clones) but this thing is on another level. I did a quick, simple dual 24ga build. Wide open at 50W-75W it's almost giggle inducing assuming you enjoy making about 1ml of juice disappear into a haze with a single pull. It really is a monster. I can't really comment on the flavor since the juice I used was a first for me and I don't really like it very much. But, I'm assuming this thing will be a bit lacking in the flavor department. So, flavor chasers can probably pass on this one. Fog makers? This is the RDA for you.
Build was super easy with one caveat: The positive post will spin when you torque down the post screw unless you secure the 510. Not a huge deal, I suppose. After all, this thing cost like $10. The post holes will easily accommodate some very big wire builds, parallels, twisted, etc. The massive post screw heads are super nice. Beats the heck out of trying to fiddle with a tiny allen key and grub screws or super small phillips heads.
Verdict? I want another one. And, it looks dope on my Sig100+.
EDIT: update to my update. Just re-wicked and dripped some juice I actually like and, BAM, there is flavor. Quite a bit of it in fact. Warm, dense, juicy flavor. I'm beginning to suspect the Mephisto V2 is now my favorite RDA.