The classic was somewhere cited to be around 1:22, the NG seems to be quite a bit better, its a goddamn gliderplane really, cant slow it or get down fast enough (glides too good), especially if heavy.
Learned to fly on an old Bergfalke 2, then Ka 8, Ka6 and ASW 15, the old stuff
Sadly no time anymore to fly gliderplanes (except the NG of course).