Thanks for the note with my recently delivered chimney sheep regarding the long rod flexibility. I did have a problem installing it as it requires a degree of force (the throat is 11inches square for a 15inch round chimney sheep). Also, the slopes into the throat are different on each side as the chimney is diverting from the vertical, so this tends to cause the felt pad to rotate from the horizontal and the extension rod then buckles under the force. Fortunately, your note gave me a clue and I used a piece of plastic basin drain pipe cut to length. This worked perfectly, especially when used to tap the felt into place rather than just push it. I’ve now got a well sealed chimney, and just in time as it is windy tonight.