When I flew the Dash 8 in Oz it was an SOP to ask the PNF if the PF could hand fly the approach. Reason? if the AP was out then the PNF had to set the hdg bugs and speed bugs etc. This could add a significant amount to their workload if already quite busy.
When doing circling app's, it was easier to disconnect the AP and hand fly it, using the vertical channel (cross hairs, not V bars) for height keeping.
Now in the UK I rarely use the AP because it either doesn't work or isn't fitted. I do use the FD but I watch it like a hawk because it has told lies before. Several times a month I'll do raw data approaches because it's good for the scan and I enjoy it. (night freighter Shed). Personally I find the FD a pain during NDB approaches I prefer to fly them raw data. If I had cross needles for the FD then I would just use the vertical channel so I don't go through the MDA.
CRM isn't about being polite, that's manners, CRM's about effective communication between all parties.