Probably not. I've been reading this thread and from what I can see is you want to just throw the plane and have it work as a glider. It may "glide" for a bit before it reaches the ground. But even with perfect conditions you are not going to be able to turn around and land with it. You have to realize that gliders have huge wingspans with very low weight. A trainer just isn't going to be a substitute for a glider. It's too heavy and has too high of a wing loading to make a good glider.

Ken