I don't see any question in your post I'm afraid.You just stated there were averages in 1971 ,you never explained in what context they were used.I first attended speedway in 1960 riders had averages then but it was not used for Team Building the way it is now with limits imposed on team strengths .When the leagues merged in 1965 there was some very strong Teams that were in original National League,they gave the Provincial League League Teams some beatings, but it gave some great excitement when they came to Old Meadowbank.I don't mind if one Team dominated the sport it would give the others something to aim for.I don't think there is a lot of money in the sport to the extent that it would damage the lesser Teams and might attract bigger attendances to smaller clubs when these Teams visit.All we have now is riders worrying about their average and very weak teams.Most fans would like to see their Teams being developed without being broken up because of averages.