I finally had time to play with my MegaTwix this weekend, so here is my review. It was a lot of fun to try it out, so thanks again!
The MegaTwix is my first dual coil clearomizer, and there are some things I really like about it. It's easy to fill and set up, it looks good on my Vamo (and fits without an adapter), and the heads are easy to remove and replace by using the grooved end of the drip tip. The bottom tank can also be used by itself, so it's really two products in one. It comes with instructions, but prepare to use a magnifying glass to read them. All in all, it looks like a decent device that will (at least in theory) allow one to vape two different juices at the same time and mix flavors without actually mixing them.
Performance-wise, I had some crazy ohm readings when I first put it on my Vamo. I had to unscrew it and reinstall it a couple of times to get it to read at 3.8. The same thing happened when I only installed one tank. I did have my Vamo on the VW setting at 7.5 at first, but when I changed over to the VV setting I was able to get the correct ohm readings. I started out at 4 volts, but was able to get a pretty good vape at 4.4. 5 and over was too hot for the fruity juices I was vaping, but it was producing some good vapor.
Taste-wise, I thought it was just OK with the two juices I tried. I had pina colada in the first tank and cherry in the second, and I was trying to mimic the taste of a juice I got at one of my local vape shops. I could taste both juices, but the flavors weren't really mixed. It wasn't horrible, but more like pina colada with a cherry chaser. With some juice combos this might be a good thing, but with mine I just didn't get the flavor I was hoping for. I have several more juices I'd like to try, though, so perhaps I'll get a better result with those.
I like the MegaTwix, but as a dual coil it's more of a novelty device for me instead of something I'll use on a daily basis. I'm more likely to use it as a single, but IMO you can never have too many clearos so I'm happy to have it in my rotation