The only thing I'd ad is what we do:
+ go over playing area (or unplayable areas such as bleachers, benches etc) any ceiling obstructions that are legal or illegal. (play to the whistle as you say)
+ we go over substitution area and procedure (mulit subs)
+ and R1 refreshes signals with line judges.
I'm gettin too old to remember all that stuff so I have it all written down so i don't forget.
