Adding Stretch and Squash

To add a little more realism to some bouncing balls I have edited the spheres using the scale tool at the bounce point, whilst using set key, keying in each change of scale with the key button. Before adding the 'squash' I moved the pivot point so that the balls looked to squash at point of impact rather than at the centre of the ball. I ensured that my 'stretch and squash' curve (found in curve editor) matched the duration of the bounce of the ball. I found this was important as before I did this, my balls were stretching and squshing much more often than when they were bouncing.. which was not the intended result! This was a first attempt and so again, is a little primitive, although it does look more realistic than my previous video.