Did you experiment with the minute amounts and swallowing vs. sublingual to find that this worked for you? Or, did you get the idea from the article that you linked?An interesting article on the subject:
Cannabinoids, Inner Ear, Hearing, and Tinnitus: A Neuroimmunological Perspective
I've been using CBD oil for more than a month and it really helps my tinnitus. The secret for myself, is taking minute amounts on a regular basis (1 ml swallowed not sublingual x 5 per day). Large amounts spikes my tinnitus.
Thanks for sharing what is helping you.