best online casinos australia players for real money Check out this sick nasty video! Paramania GTR 20 doing some sweet loops also known as barrel rolls. Looks like it almost behaves like a speedflying wing during the maneuvers. Love watching stuff like this! Still pretty disappointed that I have’t flown one yet but in all likelyhood- I think the GTR 20 is going to be my next glider. It’s been a tough battle between the Viper 2 20 and this one but the stability of the GTR is calling for me.