Feels so good, I recommend it with lofty regards. You just need to figure out how its done, once you get the general idea experimenting is a lot of fun. I have managed to get at least 4 tones going at once, and you can really feel the balance of the forces in your throat. Clears it out really well too. I started by vibrating my lowest vocal chord (that I could fee at least, don't know if there's anymore down there) and built up. you can get meta harmonies where the tones clash at the top of your throat producing a high pitched whistle.

Ketamine makes throat singing a whole new experience..

I can't even imagine. I've not tried it on D.M.T. even. Can you... revolve from a single tone into a bunch of permutations of its self split all apart and then back at a higher octave, all in one analog motion? Or do you mean in the way that you feel and conceptualize it?