No, I am using Cotton Bacon Prime currently. I will have to get some of that cotton, I did get replacement Wotofo mesh for it though.
There is this other mesh from a place called OFRF (pronounced "off") that is supposed to be better than the wotofo. I've tried both and the difference isn't that great. I watched a bunch of videos about wicking this RDA and came to the conclusion that I needed a lot more cotton than was being suggested. The wotofo cotton pulls through super tight, and I leave a lot of the excess, well past the side of the build deck. I find it allows me to get close to 15 drags before needing to drip/squank. When I followed the directions on youtube and cut the excess cotton to the shape of the build deck, and pushed the ends into the wells, it was taking away from the cotton mass centered under the mesh coil. That resulted in some nasty dry hits. I think with this RDA there's no such thing as too much cotton (within reason).