Sorry I know there's tons of threads with info, but it's overwhelming. I have an istick 50, and an mvp 3. I don't need anything, but am just curious of something a step up from these. I wouldn't need higher than 50 watts. I see lots of talk of ipv4, sigelei, I don't even know what else lol. What's a great box mod under $100? Which has the best track record? And looks slick! I like the CoolVape4 that's coming soon.