I think 172 was just referencing that we cant help you with this.

You need to thoroughly read your company manuals and see if company policy prohibits a descent less than 1000FPM. If it is not in there you then need to see if there is a FAR that prohibits a descent less than 1000 FPM (there isnt one).

My answer...ask the check airman what they would like to see and if its 1000FPM just go with it. The right seat of a crewed airplane is a special place and its a place where someone should pick their battles. 2-300 FPM is not a battle I feel like fighting.