optimum altitude selection...

[slam dunk 4]

Hi all,

on the B 737 was once a recommendation (flight crew training manual) that selecting the next higher flight level, wich was stated in the flight plan, should be made, when optimum plus 1000' showed in the FMC. (e.g. current FL 360 ....Flight plan final FL 380 and FMC CRZ page showed OPT FL 370...when needed to climb to FL380 than its FL 370 plus 1000')

Is that still valid for the NG?

thanks