I wouldn't enjoy vaping with unflavoured juices, I've tried them before and hated them, any mild flavours you know of? Do you own a nauty? What do you use in it?
I just got the Nautilus in the past couple of weeks. I am currently mixing my own juice. My ADV is DIY Hangsen RY1 - it's a mild straight ahead tobacco with no sweet caramel or nuts. I learned about it in the DIY forum.
Before I started DIY (recently) I was buying my juice from a local Vapor4Life B&M, Ry4, or Walgreens: Njoy Classic tobacco. Both of these juices worked really well for me, my brother and my wife on iclear30's. I would try other flavors from V4L, and I found lots that I liked, but if the telltale symptoms started happening, I just tossed the remaining juice in the garbage. I really don't enjoy ordering juice online only to discover that I don't like it or it doesn't perform well in my devices. Too much wasted money, cleaning, swapping coils, frustration. Once I discovered I could walk into Walgreens or V4L, hand over some cash, and vape tank after tank of pretty decent stuff I stopped searching and just stuck with it. I want to stay off smokes, with a minimum of effort, not have some life changing flavor experience. I get that when I go out to dinner and spend a couple of hundreds bucks on a great meal and good wine.
I really like NJOY Classic Tobacco and I find it doesn't screw me over, but it's kinda high -15mg nic.
Good luck in your search.