I know for myself, I like using a 510 on my Blazer Pro and use eGo style drip tips on my smok and NRG tanks. I do not like the wider bore tips,,, too much air, reduces flavor and I do like to keep my airflow (afc) mid to full open. Might look odd to others, but it' how I get what I like. I really liked the stainless steel tip on the nautilus 2, more than the other one,, deldrin?