Following up on this.
Here's Jason from 2011 Nationals: http://www.youtube.com/watch?v=G94pHGvq3Fs
Here's Jason from JW last week: http://www.youtube.com/watch?v=APF_0dzUmXs
You can definitely see that in 2011 he was just at the same height or slightly taller than his coach. Now you can see he's almost several inches taller.
Here's Jason from 2011 Nationals: http://www.youtube.com/watch?v=G94pHGvq3Fs
Here's Jason from JW last week: http://www.youtube.com/watch?v=APF_0dzUmXs
You can definitely see that in 2011 he was just at the same height or slightly taller than his coach. Now you can see he's almost several inches taller.