I've only had my Kangers for about a week and I've finally clogged up one of the coils enough to try a replacement (the old one is soaking in scotch to if that unclogs it). I got both the T3s and replacement coils from vapeking. I noticed after putting it on that it rocks a bit when I screw it onto my sigelei ZMAX v2. To stop it I have to screw on really tight which I don't like to do because then when you take it off you end up unscrewing the tank from the coil part instead of the coil from the battery. I've just been tightening until it's snug but no further. More annoying that this is that it seems to be a bit hit and miss whether it will fire. When I press the button on ZMAX the display shows the voltage same as when it fires properly. I took the whole thing off and tried again and it seems the ZMAX does that even if there's nothing connected. So I'm thinking perhaps there's some mismatch in the EGO threads and it's barely making contact? I've read the ZMAX v1 had this problem but was supposed to fixed in v2 I thought. I tried putting a 510-ego adapter in between the ZMAX and the Kanger base but still got the rocking problem and the hit and miss electrical contact. I've also tried all of the above with two seperate replacement coils in case one was a dud, same deal.
Are these replacement coils genuine kanger coils? Is there something obvious I'm missing? Any ideas on how I can fix this problem appreciated.