I recently purchased a subtank mini and a box of replacement coils from discount vapors. My question is the replacement coils I got from them have a red grommet and not the white grommet that I have gotten from other vendors and the mini itself. Are the red grommet version newer or older than the white grommet version? Also has anyone noticed any difference in the performance of the 2? And finally should I continue to order the ones with red grommets or should I go back to previous vendors with white grommets? Thanks
