After spending a few minutes and actually looking at the pictures, I know why she broke.....
So that it does not happen again. The wedge caused a large amount of strain on the lower bolts. you need to increase the size of the threaded holes and stud it...Do not use bolts.
You can buy stainless steel threaded rod and Red Locktite number 271 them into the bowl, then use hardened flat washers and aircraft nuts to torque it down...
Trust me on this, it will solve the problem permanently and you wont kill yourself.
All of the droop nozzles and regular nozzles with wedges need this done....And for god sakes be careful.
GT