The quíck start is the 4-6-8 weeks that Matt prescribes for those, like me, that have a larger amount to lose. It is a short time period where the primary focus is weight loss over performance. It is done during the off season as to not impact performance. Once complete, the focus then changes to the standard racing weight plan where performance is stressed over weight loss.
I actually purchased and will be using the racing weight plan.
The workouts during the quick start portion are HIIT workouts such as Hill Repeats and the depleted state long runs.