Here is a video by Phil Sixsmith showing his Roundhouse Taliesin both before and after fitting the Chuffer. His loco is fitted with the later Z exhaust and has a modified Chuffer silver soldered to it at the Chuffer works.

Here is a video by Tim Roy showing his Roundhouse Argyll fitted with a Chuffer. Tim has also found the Chuffer useful for keeping Jack Russells off the track I hear......