Owners of the Technics RS1500-1700 series will be very proud with results of a test published in HiFi News and Record Review magazine in June 1978. Wow and flutter was very low at 15 ips (.012% DIN pk to pk), and flutter analysis at 10kHz showed very low scrape modulation. If you want a copy of the full test please email me.
Do you know of any similar test of the Studer A80?