OK - it's a little clumsily captured but here at least is an attempt at showing how slow this version is - and it's likely that it would only get slower as I add in more error-checking to stop things going "boom". Also, there's no way to pick a particular file name and location to load or save to as yet - I've just concentrated on getting the darned thing working again, and on removing Genesis-specific checks (so while I'm using Genesis to do this, it's not reliant on Genesis). The UV file is a text file a little over 3MB in size (because it's a text file with lots of number in!).
Since the screen captures were taken at 5 second intervals, and since I had to get to the "Load UVs" menu a second time to actually run the script, this is a LITTLE slower than real-time, but not much. You can see my clock and CPU Meter displayed in the top right corner.
Cheers,
Cliff