After much frustration I decided that my DNA 200 and Serpent simply don't want to cooperate. The serpent now sits, a bit wobbly, on my Evic vtc mini and is doing fine.
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I was having reading problems with mine and giving me all sorts of trouble. I ended up tightening down the 510 till it could go no more but it didnt resolve the problem fully.
Anyway to round off my annoyance i dropped it while it was on the evic mini. It failed to read any coil then, just my luck

Anyway it has been the first atty to ever break on me from dropping in 3 years and I have dropped them all many times without out even breaking a glass tank.
So since it was broke I could investigate what happened and it turns out that the 510 inner section with threads that catches the bottom pin had broken and was rattling inside the body. I tried to get in there but it is press fitted very well but I can see it well enough.
Now since I was having trouble from the beginning it feels like it was either badly fitted to begin with so was giving me crazy ohm readings, I tightened the 510 to much compromising the connection ( hope not as it was not crazy tight) or that it simply broke when dropped from a small height (lying in bed)
So I would guess at just a bad egg for mine and was already badly fitted but I need to be sure so I have ordered another one in silver this time just to be sure......and It was a damn fine vape for 1 tank full even if the ohms were way off.