For complex aircraft, I had always been taught to begin the before landing checklist, or the gear down before landing checklist, abeam the touchdown point, which for me is normally the thousand foot markers. However, I recently heard a DPE say to begin the checklist at midfield.
Which is the appropriate method? There could be many opinions offered on this; however, opinions aside, what might be the considerations that would lead to beginning the checklist sooner? Is there a prescribed point to begin the checklist that I have overlooked, for example in the Practical Test Standards or elsewhere?