Kengores' cautions should be taken seriously! I couldnt tell you how many sections have been ruined because too much heat was applied in removing a ferrule and when it finally did come off the ferrule station was splinters from the resulting explosion inside the ferrule from the trapped gases. On that Thoroughbred, you probably do have pins in it and in all liklihood they do not go all the way through both sides. Don't only look under where the wraps were but look in the slides as well, I have found them there numerous times. With as much heat as you have applied, if it were not pinned it should have come off by now.