I started on 11mg and dropped to 6mg very quickly as 11mg gave me insomnia and over stimulated me.
I now only vape 6mg and there's not much throat hit but I don't care about that, for me it's the action / habit and FLAVOR.
So seeing as for me it's those two - I like to stovepipe a little and really circulate the vape through my nasal passages and let it swirl around my mouth slowly, french inhaling, mouth inhaling etc to really slowly enjoy and absorb the flavor - I never lung inhale - so I think for me going to zero nic will be easy and will be ordering some in my next juice batch.
As long as the flavors are still as strong (my main vapes are menthol, mint, ry5, camel and vanilla) and the vape feels the same, I'll be happy. I know I'll probably never give it up completely as I started at a very young age and am in my late thirties now but vaping zero nic e-juice is not exactly one of the worst habits you can have!