keep the coil....redo the wick....you probably have shorts in the wick. I oxidize the wick in halves. So roll the wick first and then torch half of the wick until it starts glowing orange and then continue for 20 seconds.....quench in water....do the other half....the same way. Dry out the wick with the torch or over a stove. Put some eliquid and do a couple of flame burns and you're done. Remember that and over oxidized wick is just as bad as and under oxidized wick. You don't have to quench the wick after torching it but quenching makes the wick hard...I like it that way.
I just reread your post again and the fact that your ohms reading went to 3ohms with a kathal 30g wire means that you have something loose. A 6 wrap 30 kathal coil should read about 1.6-1.9 ohms. Did you tighten the bases all the way...I have feeling your bases are loose. Make sure everything that can turn is totally tight...especially the bases....or else every time you take the top cap off or put it back on, you will slightly turn the base and that will cause all your readings to go haywire.
I will try rewrapping and tightening down the positive and negative leads when I get home. Also the spacer that screws around the center pole. if that doesnt work, reoxidize it is. Might as well make a new coil too. Thanks