G'mornin Phil
As a guy about to turn 72, I can so relate....unfortunately, in my opinion, there's just not enough anecdotal evidence yet to show that micro dosing is an effective treatment for clusters.....a scant few claim success but 1/10th to 1/20th of a recreational dose (175 - 350mg) is not enough for most folks to reach a therapeutic trip level !
Dallas Denny