Like Greg said, you’ll have several opinions. Here’s mine.
What I’ve learned is that some of my smallest jobs … were the biggest: some clients who need a 60 spot would give me more elements than some who wanted a 5 min cut.
That being said, the one thing / fear for me is to confuse PPro with media that moves from one location to the other: server to HD, HD to ext HD, etc…
What I try to do is have a main external HD that is super organized and any other drive i need to take around I make sure they are the exact mirror of the main drive: Folder structure, file naming etc..
Second thing is that I do NOT mess with file names. This is a good way to have off line media when comes online.
On the other hand I make sure to modify file names that contains any symbols (Ppro doesn’t like those).
You said that your client’s server is slow so you had to move media on a drive.
I think it’s the way to go as long as you don’t have to reconnect the offline edit to their media.
Finally it is good, once the Ppro gets full of “older cuts”, to create an archive project where you’ll store all those old cuts.
As for the timeline, I would definitely not nest (that’s what you meant by precomp I think) but I would create segments and have a sequence per segments or per 3-4 of media.
Los Angeles – TV Promo Editor – FCP – AVID