So. SWIM and friend attempted sublingual application again last night, per 69ron's suggestions. 60mg THH HCl per person was dropped into the basin underneath the tongue and allowed to sit for ~17 minutes, at which point the mouthful of bitter saliva that had accumulated was swallowed. After another 20-30 minutes, SWIM and friend could feel identifiable relaxation of the body, and a *very* faint sense of the "floating head" sensation experienced previously. Neither party experienced any nausea. Interestingly, SWIM seemed less affected this time around than his friend, who experienced pronounced relaxation leading to drowsiness. Still no tingling, vibration, or sense of "orgasmic" well being. The effects were very subtle, short-lived, and pleasant.
It seems strange to me that other people seem to report such distinct activity at comparably low doses (25-45mg), while SWIM and friend have had great difficulty achieving a similar experience.
SWIM will take a break for a couple days, and then resume testing with higher dosages and different methods. Oral ingestion and sublingual application with DMSO are at the top of the list. If anyone has further advice for SWIM, I'm certain he would find it valuable. Cheers!