Most mesh out there is 304 SS, which is food safe and lead free. It's used for food related filtration so, there. I have no idea where "someone" gets 316 SS, which is supposedly superior, certainly more expensive, but both of them are just as safe.
There is 2 different 316's though, one is a 316 and the other is a 316L, 316 has .08 Max carbon content while 316L has a .03 Max carbon content. 316L has enhanced resistance to corrosion also.
If we could get a Titanium mesh, along with a Titanium wire this just might be purely awesome. They are now making a Titanium wire which there going to start using in Atty's and Carto's this could be very good, Tungsten wire is also very good and will work better then the current wire were all using.
nichrome 32 gauge wire Nichrome Wire
Is nichrome wire and khantal wire the same thing? If not, what is the difference ?
NO, Different, material make up is the difference, you can go to Kanthal dot com to read the specs on each .
Wanted to leave this tip for everyone that is new to Genesis types. Hope it helps. Cant figure out how to embed video on this site. Tried all options YT gives for the codes.
How To Vape A Genesis Atomizer For Newbies - YouTube
I'm doing the happy dance!!! I just ordered my second DID.

270 Mesh looks to be the way to go if your a VG juice user or high VG Juice user, maybe even lower then 270 could be even better . For better wicking, less holes per square inch seems to be working better then more holes per square inch like the 325-400 has.
I use all VG or 70% VG and 400 mesh - I have no wicking issues and flavor is best IMO with that. I don't care for 325 - flavor loss, but more TH. I can't imagine 270 mesh. That would ruin my juice.