Hi
I think you may need a new one of those

nice clean break though you might find a university engineering department who would like it as a sample piece! it really does demonstrate how areas of local stress develope into a full component failure and you can see how the cracks developed from the base of each spline and radiated out through the metal. . . still broken though!
Good to see the time slip you must be well chuffed and very close to the 10s. . .
Best regards
Mike