These 3 days were spent on padstack implementation.
After spending 2 weekends and 3 sponsored day (and a bit more) on the padstacks, we now have them in a testable state.
The 24 hours of sponsoration was spent on finishing three very important padstack features: thermals for all shapes, the padstack edit dialog box and switching the padstack model over to use transformations in references.
This needed a minor extension in the HID API too. At the end, during these 3 days I have implemented two long standing missing features: