While writing the Rapier Beginners' Workbook I found that some of the video material wasn't quite what I wanted. So a couple of the videos are being re-shot in October 2018, and will be uploaded and the workbook links re-directed, hopefully by mid-November.
Sorry for the inconvenience.
In the meantime, you can find related videos here:
Warm-up for second class:
Cavazione in detail: this is being shot on October 10th, and will be up asap.