You can easily change the gullet yourself - there should be instructions with the saddle, but it's pretty easy to work out. The gullets are about £15 each. Check with your saddler to see how much he charges to come out.
Thank you very much for your replys!! I bought a new saddle from the saddler and I get one free check so she is coming at the end of the month to see him. I think he is going to need a new gullet!!!!