I guess it all boils down to personal choice (yet again, lol)......
I use the MarineLand brand on 510 atty's (both 3.7v and 5v), and haven't had any issue with melting, discoloration, or off taste. And the same requirement of keeping it wet is a necessity in use.
I'm finding as long as your keeping it clean (by washing every couple of days) that I have no issues at all with it wicking properly until the juice is all used up.
It does go without saying, that before initial use the material should be well washed with water and a little soap then rinsed very well and dab dried.
What can I say..... I like it..... a lot !
VapeOn,
Greg