Just remembered why I fell asleep on the CPC day that we did driver hours.
How to over complicate things■■?
As far as reduced daily rests go there is no week. You can reduce three times between weekly rest periods so the day of the week the reduced rest falls on is totally irrelevant. That’s it, it’s that simple. 
You could end a weekly rest, do 3 reduced, take a weekly rest, do three reduced, take a weekly rest do three reduced and continue like that.
Coffeeholic:
You could end a weekly rest, do 3 reduced, take a weekly rest, do three reduced, take a weekly rest do three reduced and continue like that.
I’m amazed more companies haven’t jumped on 3 on 3 off max hours to be honest. Especially those trying to max out hours on 4 on 4 off.