New to vaping, I have a 510 kit, 1 manual 1 auto battery, 2 atomizers, the usual starter kit. Getting a couple of spare batteries (manual, as I can't really get the auto one to give me a decent draw) and some spare atomizers. There is a supplier here in the UK with atomizers for the 510 at £4.95, but for £5.95 they have 'dual coil' atomizers. What is the difference (thanks, I know as far as price goes, it's £1.00 - it was a long time ago, but I have 2 Maths O-levels!) between a single and dual coil atty. Do you get more vapour with a dual coil or something? Sorry, I did try a search and found lots of posts about 510 attys, but never saw anything about the pros and cons of single v dual coils.