1000 hrs instruction seems to be the norm to be accepted as a CPL instructor[AT THE BIGGER WELL KNOWN ESTABLISHMENTS},that figure was gleaned when talking to prospective employers.Bae Jerez, and one in Malaysia.The more ratings u get the more attractive you become,IMC,IR, etc, and when FTC in S.A. was around they were prepared to employ me with 200 hrs instruction to do CPL instruction[hard to believe i know] i never did take the job.