Only a couple of months after finishing with Kineo on the CSL project I was contacted by LEO (then Epic Group) who had won the project from Kineo.
I worked on this project for over one and half years. First upgrading the site from Drupal 6 to 7 which was a huge migration task as there were at the time 500K users that needed to retain data. We had to write custom scripts for the upgrade as it broke Drupal's standard migration path.
Ongoing site enhancements proceeded the upgrade.