Donald:

Just a few questions....

About how many sheets can you get through this before it starts to die? Once it starts to loose effectiveness, have you found that some KBr can make it go a bit longer? What is the shelf life of the working and stock solutions?

I'm not sure if you'll be able to answer all of the questions, as i'm not sure how long you've been using this developer, but any information you can give would be appreciated. Thanks for all your valuable information that you continue to contribute to this and other forums!