After several attempts to get breeder reactor tracking sucessfully into the planner I finally decided to scrap the whole thing and start again, learning from the complications I encountered in the first version of the applet.
This is on a temporery url for now, I intend to replace the older planner with this one when I'm sure it's safe to do so (old links will still work)
This planner has (hopfully) better breeder/SUC info as well as individual cell info and can also be downloaded and ran standalone.
Edit: Is the new planner missing a piece of useful info?