Thank you Dick... The tracking system turned out to be a total lifesaver. Being able to see the change history of every code module (and there are so many!) has saved my countless hours trying to solve problems. The other part of this is that I took the time to engineering the system and programs in a way that the architecture and code is modular, heavily commented, and adjustable/extensible. This greatly reduced the effort needed to evolve the programs going forward.

Anyway I really appreciate your kind words...