Yes, most definitely a proponent (and spoke to Moneymaker face to face in 2007 about my experiences), having seen multiples at 30 yards with green eyeglow, and a single sentinel with same within 35 ft. or slightly less unobscured. There was no doubt what I was observing in the latter instance particularly as I watched it position itself below me on a trail using a bipedal glide as I was dark-adapted. Multiples sighted weeks before, and the night the sentinel (and flankers) presented to me they were within one hundred feet of the location multiples were sighted on a mountainside bench several weeks before. As catmandoo says, "I was school". The sentinel was part of a strategic and tactical movement directly at me as I had two flankers working in coordination with "it" that evening. Very intense sighting on my home turf, and glad they were simply "counting coup", as I hadn't done anything to **** them off in my research protocol to date (or maybe I did and their response was to close in and test the sob).