I picked up a 170g Opto Falchion and its overstable... Hmmmm. :/ I'm not really seeing much turn at all. It's definitely more HSS than any Saint I've ever thrown and it also doesn't seem to have tons of glide. Honestly, it's flying like a seasoned Culverin or a Culverin L of there were such a thing. Seems like a decent disc but not at all what I was expecting based on what I've read here and seen in various youtube reviews. I recall people from the TC saying that some of them were pretty OS. Maybe there is a fair amount of variation? Maybe Opto is more HSS? I can flick my Falchion with some decent power and it doesn't want to flip. I can't say that about the Saint.