I have ridden my TB in a friend's Niedersuss Allegro I while she was recovering from surgery and I have fallen in love. I cannot find one of these saddles under $1500 which is just about double my price range (she has returned to riding so I am stuck buying my own now). Can anyone tell me what the comparison is between the Allegro I and the symphonie? I have found several of these in great condition which are closer to $700-$900 which is my price range. Any help is much appreciated.