Hi all, new ECF member, been here only about a week now and am loving all the support and help. only been vaping for about 2 weeks on my own now, had vaped on my friends before that. I have a 510 with manual batteries, a 901 with manual batteries, m401/403, and a DPV9 PT and manual. After i got my first vape, i had to go out and test others out. So far, i am really digging the DPV9 from eastmall and the 510 as well. the others are nice too. good vapor production on all of them, but i must say the DPV9 is pretty darn great.