diff --git a/chinookmodel.mwb b/chinookmodel.mwb index 1a7a5ed..78b5b91 100644 Binary files a/chinookmodel.mwb and b/chinookmodel.mwb differ diff --git a/chinookmodel.mwb.bak b/chinookmodel.mwb.bak new file mode 100644 index 0000000..4d0ab48 Binary files /dev/null and b/chinookmodel.mwb.bak differ