Search policy act first on a determined upstream

rclone v1.55.1
ubuntu 20.04 lts server
google cloud storage

[uniontest]
type = union
upstreams = /path/local remote:bucket
action_policy = all
create_policy = all
search_policy = ff

rcloune mount uniontest:

about the search policy....

ff = "Act on the first one found, by the time upstreams reply"
wold like to make sure the 'search' policy will act first on "/path/local" and not on "remote:bucket".
Should I declare the "/path/local" first than "remote:bucket" or doesn't matter the order?

or use...

all = "act on the first one found"
and here the order matters declaring first "/path/local"?