After you have let the ammonia soak for a while I suggest clamping a crappy saddle in and getting the hammer. Then apply liberal amounts of the product shown below to the post one inch above the frame as well as to the frame itself where the post is hidden to cool everything rapidly. Then hold the frame and proceed to whack the nose of your saddle with your persuader alternating sides.



http://www.wurthredlabel.com/product...=18710&cat=249