CFM: 55 n1
IAE: 50 n1 (yes N1)
or five less if light / tailwind. That’s your “normal” for everything except level flight with LG down. AFTER THAT, stick to the advice provided above. Do not overscan head-down.
If you have had learned pitch plus power = path before, you will do great. If not, do not worry, it is designed to require no great skills and push-pull works well too. Understandably, to slow down more TL movement is required (40 n1), but to speed up only much less of it (60 n1). Any larger reduction of speed whilst descending requires IDLE.
my 2pc