Sorry to go off topic. Would you consider trying Item Inspector to keep track of leeches? In my opinion it is superior to Leech Tables because:
- Unlike Leech Tables it does not enforce a limit on the number of leeches displayed.
- The leech filter is a real number for a more granular filtering. Leech Tables uses a drop down list of integers.
- The meaning and reading of the items are available in a tooltip for convenient studying.
- There is a configurable Time To Review filter to avoid studying items just before the time of review.
- It can display other tables not available in Leech Tables.
Disclosure: I am the author of Item Inspector.