Cool, thanks man. Hey just throwing this out there since you like thinning out non-distillate concentrates. I used a new liquidizer called MassTerpenes. It's a terpene based solution, and the mixing process is a little different. Basically you add the solution to your concentrate... and let it sit for 48 hours. It results in a nice, amber colored, clear oil.
The company claims this process prevents separation and blackening of the oil. After a few weeks, I can confirm it hasn't separated or darkened appreciably, but I'm not using a sub-ohm tank. I'm guessing the usual darkening with shatter mixes occurs because the mixing process always involves subjecting the mix to heat, which begins the decarb process. But I don't know for sure.
I've used Vapeur Extract, EJ-Mix, Wax Liquidizer, and Connoisseur Concentrates. This MassTerpenes stuff resulted in a better tasting mix than any of those products. The PEG based solutions always gave me a "plastic" aftertaste I didn't enjoy. And Connoisseur Concentrates always tasted like perfume or pine-sol.
They gave me a free sample, and I told them upfront that I was very skeptical and had written off using anything other than distillate or CO2, because I was so disappointed with my shatter liquifying efforts. I was shocked that it worked so well.
You might want to reach out to them and see if they'd give you a sample, since I don't know if anyone has tested it in a Sub Ohm tank before. I plan on trying it but I'm stocked up on oil for a few weeks. Their email is on thier IG page:
https://www.instagram.com/massterpenes/
Otherwise, think about doing this "cold brew" method with the terps/liquidizers you currently own. I simply added my MassTerps liquidizer in a syringe with my 'trates... then let it sit for 48 hours. Sometimes after 24-36 hours I'll hit the syringe with a hairdryer for a minute to help it along. But no microwaves or other high heat nonsense like most liquidizers require.