I would recommend you call the MATZ ATC at least five miles out even if overflying.(3000+ ft QFE is normally above the zone) Most give an excellent service and will keep you clear of their traffic. The frequency is on the chart so there is no confusion even if it is combined with another MATZ.
Many are closed at the weekend, check the AIP, but don't assume there is no activity. Many have gliders or air experience flights going on.
One that springs to mind is Church Fenton who often seem to be at home even when promugated closed.
DO.