Regarding the seven days issue, I had this discussion with someone last year, he said you can’t have seven days showing on your tacho but one guy at his work did that every couple of weeks and he shouldn’t be getting away with it etc etc.
It took a while to get to the bottom of his story (he had a bit of a rage on) but the “offending” driver in question worked Mon to Fri, then did a half day Saturday, finishing at noon. Had a reduced weekly rest until about 8pm Sunday when he started work again, giving him a comfortable margin of 32 hours reduced weekly rest with seven days showing on his card and an easily do-able compensation of 13 hours for the next weekend. The complaining guy wouldn’t accept it though, he was too hung up on the “seven days” issue. 