Hello! I currently have Kanger Subtank Mini atomizer and Im using it with low wattage such as 15-20W. This tank has become too small for me since its only 4ml. I would like to buy new atomizer which should be ~8ml. I dont like to make coils myself. Wattage for new atomizer is also 15-20W. I already tried to look for 8ml atomizers but everything I found were for higher watts than I like to use. I like to take deep breaths Can you give me some suggestions for new atomizer to choose?