I’ve just had a another quick lok at the VOSA regs (revised 2007) and you are correct.
But they do slightly contradict them selves buy saying under the heading ‘Breaks’… After a driving period of no more than 4.5 hours, a driver must immediately take a break of at least 45 mins, unless he takes a rest period. A break taken in this way must not be interupted.
It then gives a few examples, none that really help.
But then further down the page it does go on about ‘wipping the slate clean’
thanks for the help guys