Judd: I hope you are not advocating switching off the FD's during an engine failure clean up. Thee is no need to 'chase the needles' if the training has been correct. I'm old school and can look through the FD and still scan the raw data performance instruments. This leads to delicate breaths on the controls, not chasing with agricultural inputs.
Following FD accurately does require self discipline. I found it disappointing to see cadets sitting just under the pitch bar, thinking they were doing OK, but IVSI was 1-200fpm ROD. They were not x-checking. That is training at basic entry level and is missing.
During the acceleration there is need for continuous delicate trim adjustment in elevator and in rudder application. This is where the IVSI & TK Line can help you freeze the FD's. Lead not follow.