I know I don't have my Zenesis yet, so you can take it with a grain of salt. I am saying this based on my own research and the information I was able to gather trying to write an article about the genesis.
For people who are vaping sludge like I do, I am going to let you in on a few tricks from someone who only vapes 100% VG with out dillution and uses SS Mesh wicks. Take about 1/4" less material then zen~ used in his 325. Also cut the little angle on the top. Do a couple of extra burns on the torch with the vg. Everything else is exactly as zen said.
100% VG pretty much needs a 305 to 307 mesh to reproduce ideal capalary action, at least according to the math I was doing for aerogel wicks
Basicaly rolling the wick slightly looser will allow it to carry enough liquid fast enough with out over filling. it the reason for the extra burns is to junk it up a bit more, because you don't have the ideal capalary size and you are trying to utilize the space in between the turns of the roll, and the junk is going to help the wicking alot.
A couple of days ago, I changed out my wick and wrapped a new coil. I was getting it to produce vapor after some initial setbacks, but thought I could get more performance if I tried again in an attempt to fine tune it.
After going through many of the steps Karma listed here I have to say it's working even better than before. Here's a quick breakdown of what I did.
1--Cut 1/4 inch off the end of the 325 wick and re-roll.
2--Pinch both ends open--you want a straw or chimney wick.
3--Keep the wick as tall as possible without hitting the top cap.
4--Don't wrap the coil too tight. I had a hot spot on the top of the coil on the final warp as it went to the center post. I tried to loosen it up, but wound up just wrapping another coil. I used less tension when I wrapped that coil, and it's worked out much better. I also used a lighter to temper the Kanthal and take away some springiness.
5--Cheat a little bit. I thinned out my VG juice a bit with some PG. A couple of drops of distilled water would also work.
6--Take the top off and drip onto the coil. Pulse the switch to get the juice to sizzle. You don't want a dry burn. You want the juice to sizzle. Repeat. Repeat again. And again. And again. You can't do this too much. I did it at least a dozen times.
7--Okay, this one is bit extreme, but it worked for me and made break-in much easier.
With the cap off, turn the Zenesis upside down. In a few seconds, you'll see a bubble come out of the breather hole opposite the wick. It will soon be followed by more bubbles. After about 2 or 3 bubbles, juice will be building up on the very top of your open wick--which is now pointed at the ground. Turn it right side up, put the cap on and vape. It should be a pretty flavorful vape, but keep going and it gets better.
Keep repeating this process. You can keep the cap on because you know after 2 or 3 bubbles you are ready to vape. As the wick breaks in and capillary action increases, you'll go from 2 or 3 bubbles, to 2, to 1, to the occasional 1 after you vape it multiple times and it dries out.
If you are getting nothing but dry burn--particularly a hot dry burn with a metallic taste, you very likely need to look at your coil. There is a difference in flavor between a normal dry burn and a coil with hot spots. The coil-induced dry burn is drier, hotter and can have more of an "off" or metallic taste. A regular dry burn isn't nearly as hot, and while it lacks flavor, it doesn't have the same "off" taste of a coil with hot spots on it--at least to me.
So, that's what I did to get my Standard really performing. Now it just seems to keep getting better. I've had some vapes that have had more depth of flavor than anything I've ever tasted before.
Personally, I think if you vape both PG and VG, that you're better served starting off with PG juices and the installed 400 wick and coil test fired by Zen. You'll learn how it' supposed to behave before you attempt to change wicks for VG and wrap your own coil.
I'm just relieved you got your batteries! Now you'll be ready for when the Zenesis finds its way to you. 
