I maintain a part of a web site adding many graphics.  
After I FTP the graphics I can add them to my mirror, 
and see no reason to have HTT download them.  
I tried using a "-" filter, but that deleted the files 
from my mirror.  
No filter sees differences and deletes my added 
graphics from my mirror and downloads them again.
There are many directories that never change and I 
thought I could save time and work by telling HTT to 
ignore those directories, but "-" filter deletes them.
I still have to mirror the site to find out what 
others have changed, but I know what I change.
What is the best way to handle this?