Resistance change on mini pro?

[twintrades]

Ok im stumped...... I made a coil for my mini pro tank. Its reading 1.5 now it was 1.8 before i refilled. Whats going on? Its vaping just fine but i thought it was strange that it dropped .3 ohms

 

[Taowulf]

I've had them change within .2Ω on the ohm meter. I just figured it was my sloppy newbie technique.