I've killed a couple of Darwins through dripping. There, I said it. To be objective about it, I'm tough on mods and a newb when it comes to dripping. There's a lot of variables involved: me being a dumb-

, possibly my kind of juice, attys, and the design of the mod itself.
Putting a 510 in the naked bronze arm leaves the atty's airholes completely exposed. Great airflow and vape, but a little inattention can cause juice to seep out onto the pivoting arm and possibly further down the side of the mod with the thumbwheel and vape button. A few juice baths later, dead Darwin.
Brandon is a hell of a stand up guy, and has stood by his warranty for me. Period. Hell, I even felt bad contacting him. But he'd overnight me a replacement the same day. I think I would have given myself a cussing and a scolding if I were him. He also worked on redesigning the internals to make them more resistant to this problem. I didn't give up on the Darwin...because it's a HELL of an outstanding vape when it's working right. Perfect vape, every time.
My solution (discovered by accident) is to use a shorty 510 to 510 connection from clouds of vapor. Still vapes as well as it ever did, but any overjuicing is held by the adapter and oozes out the side of it, keeping it safely away from the Darwin's magical innards. I think this is a must for the Darwin; it certainly is for me.
I also recently got an GG iAtty, and did my first coil. Got it working on the first try, but it ended up being 2.3ohms instead of the 1.5 to 1.8 I was aiming for. Still happy it's working, but a bit tepid using a 3.7v 18650 on the GGTS.
Now where the Darwin really, really shines is with the iAtty. The combo satisfies my juice feedin' cravings, and makes it irrelevant as to exactly what oms my coil making skills ended up with. The wattage control makes it easy to dial in the heat for tasty vape without scorching juice.
I'm going to try again with the iAtty for a LR coil, but I want to see how long this first setup will last. Thanks to the Darwin though, it is hardly a sacrifice.