Having shot much video from the ground and in the air with the Canon XL1 ang GL2, I can recommend the optical stabilization as the best I’ve seen on any of the DV cameras. There is no degredation of the image quality and the enhanced stability lend greatly to overall quality.
One caution about using the stabilization. When shooting from a tripod (fluid head recommended) and panning or tilting, the stabilizer can cause an overshoot when you stop the motion.
The stabilizers is constantly trying steady camera motion and on the tripod shots this is revealed by the image stabilizer continuing to try and correct for the camera motion at thye end of a pan or tilt move. Just when the camera pan/tilt stops, the stabilizer makes the image seem to continue in the direction of the motion for a split second after you stop the pan/tilt. This can result in the images not being frames as you desire at the end of the pan/tilt operation. Just remember to turn the stabiliser off for tripod shots.
Copter Doc
The spin starts here (;->)