Just curious on how you guys are cleaning your Aspire coils when they get gunked up. I have one soaking in alcohol and then plan on boiling it. I really don't want to dry burn these. I have been using a dark 70vg juice lately so it's getting gunk in about a week of heavy vaping. My Protank2 and T3s tanks have taken a back seat to the Aspire lately and I'm trying to get every penny out of the coil heads. Any info on cleaning would be great,thanks.