No critique, but an interesting, to me, observation....
Always wondered just how close some bored smoke holes came to the top curved surface of a bent-shanked pipe. This horn looks to have a just few millimeters of wall thickness right at the unfortunate break.
When it comes to pipe-making I guess the shortest distance between two points IS a straight line....in this case, the straight smoke hole. Until someone figures out how to drill a curved hole down the centerline of a bent-shanked pipe there will always be weak spots within the curved section of a bent shank pipe where things can easily go "snap" when dropped or stressed.
scrumpy j.....good luck with the necessary repair.