I think you missed #34 in the Table of Contents Chris.
From your last ToC:
Lr3_31.zip - DNG
Lr3_32.zip - Edit Capture Time; Sort Order
Lr3_33.zip - Ranking & Labeling
Lr3_35.zip - Synchronize Folder
Lr3_36.zip - Dual Displays
Lr3_37.zip - Shooting Tethered, Wrap
Looks like you forgot the one on Stacking