Objective: How to replace windscreen wipers on your car?

Which of the following solutions is more sound in terms of naive physics reasoning?

(i) Remove the replacements wipers from their container, raise the wipers from the windscreen, then unlock the old wipers and remove them, once removed lock the new wipers in.
(ii) Remove the replacements wipers from their container, leave the wipers in their standard position, then unlock one of the old wipers and remove it, lock the new wipers in place.
(i)