On Mar 25, 3:13*pm, Bruce Hoult wrote:
On Mar 26, 2:53*am, John Smith wrote:

Looking at the pure acro time, glider acro is about the most expensive
acro you can buy.

Not if you have access to a decent ridge, or wave.

And not if you have a good winch:
http://www.youtube.com/watch?v=-VlRd9-wxQI (Instruments in meters,
meters/sec)
Winch launch height was limited by airspace restrictions