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In this paper, we report an interesting superiority of fractional order controllers over conventional order controllers. It is found that the fractional order proportional-integral controllers (PI ^α and [PI] ^α ) designed for precision modular servo experimental setup to meet given loop shaping requirements outperform the correspondingly designed integer order PID in limit cycle suppression. More precisely, a pretty significant reduction in the limit cycle amplitude is observed with PI ^α and [PI] ^α as compared to the normal (integer order) PID in the real time closed loop system response.