Ok, so I emailed MMV (Krystal) about steeping, and she replied that some folk give their tobaccos a few days to steep, but their juices are made to vape right away. Ok, so I hit all three last night.
I used them in a cotton dripper and a silica dripper, then moved them to an EVOD, so that should tell you flavors were not tainted much if at all by the device.
All three juices have a clean flavor, no cough syrups, no chemicals, and no acidic bite. They're very smooth and subtle.
Perhaps because my nic level is 6mg I found them a hair too subtle. I would hesitate putting this in a carto tank, since some of the flavor might be muted out completely. Had to use drippers to really pull out the flavor and throat hit. They're good in the EVOD, just mild.
I seem to have a thing for tobacco vapes with vanilla and caramel, so all three have that component. Dusty boots has a little bourbon flavor added.
I like these juices and the service, so I can certainly see reordering in the future, just might up the nic level to 12 though.