Actually Soho is the
first tobacco I'm finding really essential to steep. Initially the maple syrup flavor note was overwhelming -- the flavoring smells just like Hangsen Highway -- which mellowed after a week but still didn't taste that good. After 2 weeks I'm really liking it. I guess it was vapable before, after all I had Highway factory ejuice that still tasted like that 3 years later

... Mixed at 3%, may try 2.5%.
As to shake and vape, nothing's much good until the bubbles (essential) rise out of it and almost everything benefits from at least overnight. Most of my low flavoring tobaccos I haven't been able to detect much change after a couple days. There can be a slightly more refined taste to some mixes and this can be quite significant if that's what it needs, but the flavor is usually objectively close after overnight.