Do you think there's a place for a major "classic" track meet or league that only allows spikes with "x percent" energy return to be used?
With the recent tech it's tough to compare times between eras. Perhaps bicarb makes all new times un-comparable anyway?
Thoughts? I think it would be neat, but then again I also think that there could be successful pro basketball and American football leagues that limit height and weight respectively. Tennis did it with wooden rackets.