I had a Harlequin x Cannatonic cross, like 15% cbd and 6% thc. My tolerance to THC was pretty high because even the good indicas I vape have high THC levels, easily 3-4x, but rarely over 1.5-2% CBD (although I should say I have access to refined CBD CO2 oil ~43% CBD and 2% THC). When I vaped the 'Cannaquin' I basically got no head high but it really helped with my pain. I didn't get too sleepy vaping it. I also had some capsules made from hash oil from it with coconut oil, 100mg oil each. Those were great. Maybe a little much even, take one 45 minutes before bed and I slept well. I prefer vaping before bed instead of taking my opiates before bed for pain, I'm trying to keep it minimal but get pain that unfortunately conventional cannabis doesn't really help sometimes (and even sometimes big dabs of the CO2 oil don't really help). I do keep a few grams of the CBD CO2 oil around, sometimes it doesn't work... as well as the flowers. Personally I think that keeping it in flower form is a little more beneficial. You get the full spectrum of cannabinoids as well as the terpenes. Terpenes are beneficial by themselves, providing benefits for inflammation and depression as well as anxiety and other things. The CO2 oil I get (and I think all of the CO2 oil) seems to really like pulling the terpene beta-caryophyllene, which results in a black peppery taste. Even though the oil is higher in CBD content I feel like I got a more wholesome benefit from the flower and the capsules. So high CBD flower oil seems to provide better effect for me. Anyways I know I'm rambling on now and it is barely related to your topic but you're interested in high CBD and I have some experience in that so I hope it helps?
High CBD low THC flower and extracts = really nice for me, helps with pain and relaxes me without really doing anything at all headwise due to my THC tolerance*.
High CBD concentrates that are CO2 and/or refined or pure CBD = helps a bit*, doesn't seem to be as beneficial as CBD + THC + terpenes*.
Me = curious to try pure CBD oil and do a fractional distillation of some cannabis and collect the terpenes and introduce them to some CBD and see how it works.
*I suspect I am an outlier in regards to CBD working for my pain as I have a somewhat serious pain condition so it can only do
so much for me before it's useless
for me. Sometimes I ingest a lot of CBD and it ends up not working. Take my experiences as just my experiences
https://www.projectcbd.org/terpenes-and-entourage-effect