Xpro M80 Plus Keeps Changing Ohms Reading On Each Puff...??

I have the Smok xPro M80 plus and I have a couple Kanger subtank minis I use with it. I usually use .5 ohm coils. Sometimes it will show the ohms fairly correctly at .54 or even .61, which seems close enough. However, as I puff, the ohms reading will tend to change after every few puffs. Sometimes it will even say up to 1.5 or 2.0 ohms on the same tank coil! One tank seems to do it worse than the other, but the two I use now both will change quite often, and once in awhile quite drastically. It sometimes helps if I unscrew the tank and screw it back on, but if it isn't really tight, the ohms read are really far off from what they should be. I'm not sure if it is the tanks or the M80 plus that has the problem. When it reads really high, if I don't catch it before I take a puff, it is horrible and burny-dry, since it thinks the ohms are so high...

Has anyone else had this problem and/or have any ideas as to how it can be fixed??

By the way, I've cleaned the connections and everything thoroughly, so it's not that...  


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