I wonder about that 30% faster wear claim. The old 8-speed Craig/Forster links did develop a click after a couple of thousand miles but the Wippermann Connex links I've used with their 9 and 10-speed chains seem to last forever, certainly for the 8,000 or so miles I put on a chain before replacing it (and the cassette). I've used many of them over the years and never broken one.