hi danyansf and welcome to the forum. I have the Aspire Nautilus mini's and I used to change coils when I changed flavors. I don't anymore, I just rinse the glass off and wipe it out. (not certain if the Aspire Atlantis is made the same way) It just takes a few hits and the old flavor is out. I kinda take the less I handle it the better off it is. I have had decent luck soaking a slow coil in vodka overnight, blowing it out, letting it dry, and reusing it like new. Your mileage may vary. YMMV. Good luck.