which atty works the best? let me rephrase that, which atty will last me a long time? i have a 901 chuck and i also built 5v mod. ive been using 510 and 901 on them. the 510 doesnt last long(3-5 days max) and my 901 only last about a week, 2 tops. i never used or tried 801s before. will me switching to 801 last me more than 2 weeks i go through about 3-4 attys a month. ecigsupply loves me over there i place an order every month.