I had to stop analogs after 50+ years,I went to cig a likes for about 3 years and a few months ago finally istick20 and 30 and two aspire mini's.. Watching you tubers,they seem to really like the Kanger subtank even with the premade coil,some claim it's very close to the build coil...I really don't want to get into building but I read the flavor and vapor is amazing on that thing even with the factory coil...Anyone know first hand what a step it up would it be to go from an aspire mini to the kanger sub?....Thanks,Bob