ORIGINAL: bigedmustafa
It's funny to fly the Nexstar around at half throttle and have the thing practically dropping like a rock. The real Nexstar is practically a sailplane and will easily cruise around at a click or two above idle.
Your right, but this is both trivial to fix and G3 models slow flight VERY well.
The problem is that the parameters are off on the Nexstar.
Edit the plane in the physics editor ( with the advanced options on ) and for the wings, rudder and elevator, set the wing lift percentage to 130 to 150 and the parasitic drag to approximately 80%.
Then the plane will fly like what you are used to.
If it's still not enough of a glider, set these higher and parasitic drag lower.