Sorry for Double Post! Is a slight air leak a non-issue with the dnail sic halo and slim male 18mm base? Its not air tight in my dropdown but it doesnt seem to affect the hit. Any solutions for this or is this normal with metal in glass situations? Also, do I need the spacer thingy? I am using the large washer but the spacer seems superfluous. Can I clean the coil with ISO? Seems to be giving off an aroma of burning metal but maybe it just has to bake out? Thanks for your help all!