At the Avon M/C tire official website, under "2004 News," is a story celebrating Minono's use of unshaved Avon Azaro ST tires at 225+. It appears they are endorsing them for speed trials, though their parent company, Cooper, is at the same time supposedly wanting nothing to do with LSR. Hmm. Right hand maybe doesn't know what the left hand is doing.
Recent research in China found a possible racing tire source capable of quality, but the M/C LSR tire demand is too low to qualify for production consideration. I, personally, don't need 70 each 120x17 front and 190x17 rear prototype tires. Next stop Rumania or Hungary.