Geocaching lists support a comment field, inappropriately called "Geocache Description". On the assumption that something useful is recorded in there, this data should also be included in the vGPS "Import from Bookmark List" option. This comment field could be imported into the vGPS "Usernote 1" field.
In my Lonely Caches list I record how was a lonely cache find, and I thought importing this list into a vGPS and exporting into a spreadsheet would make it easy for me to do some analysis on this. Alas, no. For now I will have to find another way.