Stu!
Good to hear from you. I think it's the future. The performance is sorta there: the hacker setups are slower than glo, and probably suffered a tiny bit in the wind, despite excellent vertical authority. Bernd Bershorner's Plettenberg setup had the speed and performance, but at 10 lbs, not 11. (I think he's on to something!) I am experimenting now with an Axi 5330/18 in a Hangar 9 Funtanna 90 that weighs 11 lbs and has 100 squares. When I think that the performance is there, I'll probably switch. The new YS170s are well behaved animals, and flew best at 175 to 200m.
later,
Dean