Here is a tip for people that need to reset due to script abuse.
The Item Inspector script will let you see your leeches in a table on the dash board. You can set the script to display the levels of the items. You can set the ordering to list the items in order of level. This way you can see at which levels are the items that give you trouble. You will be able to pinpoint the best level to reset to. Below that level you know the items (few leeches) and above that level you have lots of leeches. (Disclosure: I am the author of Item Inspector)