Flew back into Gatwick (North Terminal) today and baggage reclaim (1-7) was very busy, some belts had two flights worth of luggage on one belt. Baggage reclaim 8,9 & 10 which are apprently oversized baggage belts were turned off and not in use and laying practically dormant. What is the point of appointing three belts for oversized baggage?! None of them were in use! These belts could have hosted normal luggage to ease congestion, instead only 1-7 were operational and people were waiting for the belt numbers to appear on the screen as all belts were full which caused more congestion!