Still feeling this made a difference?
I've been using the same #500 mesh wick and coil for a couple of months. (straw type)
The only issue with it is that it doesn't wick well without tipping.
After reading your comment, I pulled out my sheet of mesh and had to look really hard to see a "grain".
I looked at it for a bit and it appears that the grain looks like I have rolled it around the wick instead of along the wick.
This afternoon I may have to give this a try. I'm opening a bottle of DIY juice that has been stashed away for a month steeping.
I expect it to be spectacular!
BTW-I tried a couple of solid wicks and failed with them as well.
All I got was muted flavor and low efficiency due to heat sink effect.
On my fifth tank with this wick, and it's still working really well. I haven't yet loaded it with any dark juice, just clear juices like Thug juice and Wipeout, both fruity juices. I'm a bit afraid to ruin the wick with anything dark right now, even though I've only made 3 wicks from 3 sheets of 12x12 500 mesh.