SuperAntx originally suggested this near the enod of the comments thread for Client-Sided Icon Manipulation and now that I am back to work on Ultimate Jigsaw, this would be an amazing debugging tool.

The first iteration of Ultimate Jigsaw ran between a hundred to a million-plus icon operations per puzzle, along with a a couple dozen to a couple million extra operations during the solving of the puzzle. Simply put, it would be nice to have a log of what icon operations were/are (being) processed by the client and which by the server. This would definitely help in the optimization process.