have to agree with Moose and TOGA. Who cares if you save fuel. You get a final warning letter if you fudge up and become unstable. Maybe guys would try to be more efficient if there was less fear of termination.
You become stable painfully early, you go home and forget about it, keep your job.
Isn't there another post about guys creating their own CDA approaches only to have ATC to tell them to increase ROD? Following ATC instructions not to hit anything, that is a great idea….