HI All,
To throw in my 2 pence worth, I have been vaping for a few months now and straight away our local vape shop got me into re-building coils with cotton. I have been using orgainc cotton balls and it has worked well for me once I mastered how much cotton I need for the coils.
I have just updated from my ego batteries to an Eleaf iStick and it is a great battery btw, but I also ordered a few pads of KGD cotton to try. The other night I tried it in a new coil build and by god it was easy to wick and no issues with it. As for taste I can't tell much difference to standard cotton balls but that might be me. What I will say is though it is so easy to wick a coil with it, but getting it is a nightmare (at a reasonable price) so I have been googling around and found another type of Japanese cotton called Muji. It looks identical to KGD but you actually get more as the pads split in to 4 layers.
Here's a link to a youtube vid about it
https://www.youtube.com/watch?v=zFpt1l2CibM
and I have just ordered some from here today
MUJI Online - MUJI Shopping
£2.50 for 60 pads (that splits into 4 so 240 sheets) and £2.95 shipping to the UK. I think I will have enough cotton now to last a life time.