Went to machinists yesterday, and asked to get a new top made up for the incomplete G7. They had apparently backed up all my block data onto a CD, but something had gone wrong, and the CD didn't have my data on it, and all the original mastercam plans were gone.

i.e. the machinists have lost all the Mastercam work for all of my blocks and we're back to the paper plans again.

Oh well, what they lost wasn't like to get made again anyway, but it'll take a couple of extra weeks to get the G7 top made up.