HSWL
While your conviction on the use of checklists is great, might i suggest another way in which to use your list to further increase saftey, particluary downwind where aircraft can be flying toward you from all sorts of directions.
Why not use the list as a "checking list" rather than a "to do list"; this would mean that you could spend more time looking outside for other aircraft and "watching the road" rather than on the list.
By now after doing your list many times you would be resonably familar with it, so you could do as many items as possible from memory (i reckon you would probably get them all done
)then use the list to ensure that they have all been completed.
I could be wrong here but i believe this is how most RPT operators use a checklist.
Give it ago, and let me know what you think
