Hmmmm... The bta was settled in another spot for quite a while already. And I've glued the Monti in place... Should i break the glue? It was the super glue-epoxy-super glue method. If i do I'm afraid i might break the Monti's skeleton....
I agree with the post above. Do your best to keep as much of the monti intact. Personally I'd use some bone cutters on the underside to clip the glue and pry up.
I managed to get a small test pen under the epoxy and the rock and pried it off. The whole frag then fell right into the BTA! After a moment of panic, I realised it had continued tumbling and was now on the sand under the BTA. Managed to retrieve it and glued it much higher up on the rock now.