Jerks cannot be completely avoided with CBC coupling based rakes. LHB rakes like Shatabdi are better than ICF CBC rakes like Kaveri, as LHB coaches have tight-lock couplers. LP can also reduce the jerks by managing the acceleration, but the jerks are more dependent the state of the springs in the buffers, track conditions ( irregularities in the tracks) etc. Even an experienced LP will not be able to reduce the jerks in many cases.