Static. .Nice to see that the video is getting around but nothing like as widespread as it should be. I cannot recall anything in the training arena which has made such an immediate and lasting impression. Having watched the series on at least 30 occasions, I still find new bits of value. One particular area is being able to make note of the height loss incurred in the 'natural' (maintain your height) reaction as against the 'trained' response of gaining airspeed and ignoring the height loss. Fascinating stuff !!