As I mentioned before, there are "hotliner" wings (with ailerons and speedy airfoil) also available for the Guppy sailplane. It is apropriate for the modellers that want more fun on the slope, or just playing under power on the plains.
Hotliner wing for free downloading:
And you can download also asembly manual for the Guppy...sorry, only in my native language for now, but pictures tells more, so... free to download:
But if the interes for this sailplane will grow, I could translate to English.
Jo to fly on sunny day!