hi nat_prog, i agree with your point of latest technology in sail cloth, even though mossies are embracing the kevlar era, there are other sailors and classes who still use dacron. however the black bands are to be a permenant fixture on the spar and using electrical tape or stickers for it defeats the purpose of having them.
on the other hand how many of us sail past a competitor and check to make sure that he hasnt extended his sail past the blackbands???? who's side am i on anyway?
i hope you are not suggesting that cheating has never happened in a sporting contest before either ??