The basic Gios geometry made an evolution over time. I have three. The bike from 1973 I would place as a typical Italian road bike of the period. The frame from 1975 or 1976 is different, a lower bottom bracket, than the earlier bike. I place it as that due to the early design short dropouts with out holes or forged in boss for the chainrest mounts. otherwise also conservative. As it has a Fischer cast bottom bracket shell and socket windows opened up like many Italian Masi's of the period, the Pela connection might be there, or copied from his work. The third is from the "coin era" shorter top tube, but not as short as bikes I measured up while working for a shop in 1986, but a different bike in many respects.
"legendary" ride is all size and timeframe dependent. Workmanship shows well either with or without paint, two have had to be stripped.
Lou Deeter made the comment about "production" or specific customer build.
Some of these are still under restoration, so no comments about the ride. But they should be different.
John Jorgensen
Torrance California USA