I have two cobras. One provari. Jojo stole my other provari and please don't ask how many she has.
I have one cobra on my provari and the other on a lava tube. If you own both, you know they are temperamental in their own way. But I get the m ROCKIN on each. I can use either cobra on one of my mech mods (GGTS) when I want too. But they will be fully dedicated to other RBAs soon.
Here are some points I've seen.
- torch that wick. Especially pay attention to the section that is above the tank where the coils will be. The top half.
- don't "choke" the wick with your coils. The odds of a hot spot cutting into the mesh increases and then the layers as it it cuts in will cause the shorts. The thinner the wire, and the finer the mesh, the more prone this is to happen. (32g wrapped tight on 400/500 with light oxidation will cut into it). Take the wick out, wrap it and reinsert it. Let it almost naturally spring back which sets up the perfect spacing. Connect. You should be able to gently remove the wick from the coil, certainly with twisting.
- coils that pull away too much? Twist the wick to rotate it in place. You'll notice the wires to even themselves off.
- hot spots....the coil below the glow is usually your problem. Remember to nudge. And another bonus to letting it spring back....nudging is easy. Think about it. If its too tight, you are dragging it along the mesh. Each nudge you make when it's too tit means you touch the mesh with whatever tool you use and potentially create a new possible spot for a short.
- another thing....if the errors continue, check between the ground screw and the wick. Slip a tiny screwdriver between that screw and the wick. It'll out that tiny space back in and prevent any of the bottom 3 coils from touching that screw. (This depends on how many coils you use. I use 30 or 28g and need many coils)
- the thicker the wire the easier to avoid problems BUT the more difficult to wrap. 30 is awesome.
- twisted wires are more forgiving. If you don't mind a lower res, but want the 32g or that's all you have, you can twist them nicely together and coil away
- I don't normally torch/light my wire anymore but if you keep struggling that may help