Update for future searchers....i have now successfully built dual coil builds for both the plume veil and the mutation x RDAs. Plus I have successful builds on the kayfun. The kayfun wicks infinitely better than the original RDA on the subtank. Well, before I drilled holes in the side like they are now from the factory. I dont have pics yet. But to any other newbies, I recommend doing simple youtube searches and you'll find videos to show you how to do everything.
The kayfun I would liken to a nautilus mini, in my mind.
all these MTL suggestions. I don't build, by choice with a wide variety of reasons that no one is going to change my mind on. So that means buying coils. Here's my list so far,
Nautilus, mini or full size still reigns supreme. No leaks. I think it's about the only vape hardware I've every seen last for as long as it has. 22mm or 19mm size. Kidney puncher has a modified base for it. Anyone know of other modifications?
A lot of people like Ceravape made by Anyvape as an alternate to protanks. Ceravape takes either the Kanger or Aspire coils. I've also had good luck with Aerotanks with AFC base. Davide, protanks 2 and 3 with AFC base, genitanks are all 19mm diameter size. They use BDC. There was a gasket to change protank bases to fit Aspire BDC's. There are 2 versions of AFC bases for protanks. A lot of people have quit with older gear and the sales are great right now.
Eleaf GS Air series. Those are an upgrade in flavor to Nautilus IMO. They come with 1.5 ohm coils only. They are 16mm and 19mm diameter with no 22mm size. With box mods like the istick, size isn't that important.
Kanger Mega tank is 22mm but it's been fiddly and leaks for me. It never looks full. Also takes BDC's, universal or sealed. Hypertank uses the same coils but holds 9ml and leaks just as bad.
Subtank, 19mm or 22mm, offers a wide variety of coils that are in the MTL range. Reviews are everywhere. Leaking seems to be a common complaint and that's a deal breaker IMO. Has RBA option. The higher ohm coils are more difficult to find.
Atlantis V2 has an almost universal fitting 1 ohm coil. Will fit Melo, IJust2, Herakles and a few other tanks. Sweet Vapes has a compatability list on their website. Other coils do not always fit in the Atlantis V2 so it's one way only. I don't have all those tanks to check out the quality of vape on. Atlantis V2 coils also fit Atlantis V1. I wish Aspire would make a 1.3 to 1.8 Atlantis 2 coil. I believe Anyvape makes a RBA for Atlantis. I don't know what the compatability is of that.
Triton has a 1.8 coil which some have reviewed here. I've heard mixed results, but have no personal experience with it. I've heard it does better with high VG liquids and I do vape max VG. I haven't heard this coil being compatable on any other tank.
Isub, Isub G, Apex which is top fill has a 2 ohm coil. For some reason a lot of stores aren't stocking the 2 ohm coil. I found it at Vapor Beast and Sweet Vapes lists it as out of stock now. Great reviews on the Apex with 2 ohm coil. Innokin advertises the Apex is leak proof and will have a RBA option soon. Hopefully I'll find out if their claims are true soon.
UWell Crown has a 1.2 ohm coil. They are said to be tops for flavor, second only to Kabuki, below.
Top of the line is Kabuki from ihybrid using Nautilus coils. These get high marks from everyone and at $89 they should. I have seen them on ebay for less. I'm watching it closely, maybe it's time for some high end MTL gear? At least it's assurance that MTL vapers are not dinosaurs living in the past, but a valid vaping preference.
Have I missed any MTL tanks?