It's much smaller, and apparently far less back pressure. Watch this video: http://youtu.be/Hm-jX-rSKS8?t=2m4s http://youtu.be/Hm-jX-rSKS8?t=2m4s Around 2 min

It's much smaller, and apparently far less back pressure. Watch this video: http://youtu.be/Hm-jX-rSKS8?t=2m4s http://youtu.be/Hm-jX-rSKS8?t=2m4s Around 2 minutes. You'll see it being removed, how large it is in the instrument, as well as the reactions.