It is not a secret that when designing turbomachinery components there is a trade-off between the performance and durability. I challenge any aero or structural designer to highlight a geometric parameter, that when modified, is beneficial for both. Because of this trade-off, designers are often faced with the dilemma of selecting reduced performance or life when finalizing a component design. But which one should be sacrificed for the benefit of the other? This brings us to the all-important question: What is more important in turbomachinery design: performance or durability?