One of my teammates blew out a tubless tire last weekend. Nothing is full proof. Tubulars are not that hard to repair and sealant can fix 80% of the flats. I've become a big fan of Tufo tires because they don't have a tube in them per se. The tube is actually laminated to the inside of the tire casing unlike a traditional tubular where the tube is sewn into the casing. I don't think it's possible to pinch flat a Tufo and you will never burp one out. If glued properly it won't roll either. Speaking of which, don't pay some one to glue your tires, do it your self. THe best way to learn is through your own mistakes. If you pay some one to do it and roll a tire you won't know what mistake he made, where as if you do it and roll it then you know to alter your methods and try to iron it down to a method that works.
Basically the proper method is, use a but load of glue, a hell of a lot more then you think.