A method of dynamically balancing a shaft for multiple rotational speeds comprising: rotating the shaft in the balancer at a first rotational speed while measuring a first force and a first angle of a first shaft imbalance measurement; rotating the shaft at a predetermined second rotational speed while measuring a second force and a second angle of a second shaft imbalance measurement; comparing the first shaft imbalance measurement to a first predetermined imbalance specification and comparing the second shaft imbalance measurement to a second predetermined imbalance specification; if the first shaft imbalance does not meet the first predetermined imbalance specification or the second shaft imbalance does not meet the second predetermined imbalance specification, then calculating a composite correction based on the first and second shaft imbalance measurements; and applying a first weight to the shaft at a correction first angle based on the calculated composite correction.