For the benifit of new comers. "Stretch the glide" = an instinctive reaction to pull back on the stick when the plane is dead stick and you are coming up short. In the heat of the moment it will feel like the right thing to do, but it isn't. The plane slows, and flies closer to stall, and very likely below its best Lift/Drag. You end up staying the air longer, but comes up even more short that would have been had the nose been pushed down and the speed kept up.

Somebody with a Nextstar should balance it a the recommended positoin, then take of the muffler and see where the CG ends up. Would be interesting to know. Perhaps the muffler loss does move the CG back far enough to be a real problem. In which case balancing a bit ahead of the recommended CG would avoid the unfortunate circumstance.