Nice, I’ve done similar using everclear, without purging alcohol to keep it as a tincture.

Also your yield of oil will vary greatly depending on the amount of cannabinoids & terpenes in the plant. So if u used outdoor plants that didn’t have a full finish you get a low yield. If they had nice weather & really got to finish your yield could have easily doubled or tripled.

I’ve got a few lbs of old trim lying around from grows long ago, hopefully developing a lot of cbn, I’m gonna tincture them up soon I’ll post it 👍