I recently just learned to rebuild coils (maybe a month ago). My favorote tank is my smoktech ARO bottom coil tank, and it is pretty much what I use all day long

I also rebuild my kanger evod coils, top coil tanks such as vision vivi nova tank, and i have rebuilt my small smoktech dripper rda. Soooooo, to get to my point...haha..... I like my coils at or around 2.0 ohms to 2.5ohms and so far i have only wrapped around a 1/16 drill bit. My question is do you guys think that wrapping around something bigger is better than wrapping around a 1/16 drill bit. I have been thinking about making my coils a little bit bigger, like perhaps wrapping around a 3/32 drill bit. I thought i would ask you guys what you think about it. I also have an Acro5.0 tank and an aspire nautilus tank, but i have not tried rebuilding their coils yet. I wanted to get more cotton or rayon first. I have one more question (sorry guys) i had a couple organic cotton balls that I got in a little kit as a gift, and they lasted a while...lol Well, i have finally run out, and i have never purchased organic cottonballs, but i assume walmart would have them (my boyfriends workplace is not far from a walmart). Does it have to be organic cotton balls? I am getting ready to look on walmart website to see how much they cost and if they do have them. Thanks guys!