Well I talked about several versions of the layer system, so it's hard for me to give precise info on how to use the olympic lifts within that system. When someone "adds" the olympic lifts to a program the best way to do it is normally as the first movement in the program for 4-6 sets of 1-3 reps between 75 and 90%. I wouldn't use it as a layered exercise per se.
I see no reason to start off slowly after on one week off, You will simply be recovered. It might take 1 or 2 workouts to get back into the groove (you will be physically fresh but the nervous system might be sluggish) but besided that there is no need for a special approach.