One thing I've noticed, and people here point this out often, is that taste changes over time. Not sure how much of this is due to getting off the smokes or other factors. My custom perique/latakia blend didn't taste as good last week as it did when I first mixed it up. But then I was originally comparing it to EcoPure Rich, whereas in the mean time time I got some Dark Vapure, which is great stuff, and stronger than the EcoPure.
But yeah, it's very subjective. Reminds me of when I worked in the tobacco shop. Some folks love Jamaican cigars. I thought they were just OK. Not too many pipe smokers like perique, but I think it's great.
Vaping reminds me more of pipe smoking than cigarettes or cigars. I kept several tins of tobacco around, and switched flavors a lot. I also blended my own mixes. Same with e-juice. What I currently think I'll end up doing is keeping a couple base juices on hand, and then tweaking those with flavorings to keep any particular taste from getting old or stale on me.
FWIW, my goal for nic level is around 17mg. I currently have way plenty 10mg juice here to blend for that. It's clear the 24mg is too much, and 12 is not enough.