My 1200 Sport was the same way. I have no idea why Guzzi isn't capable of measuring the engine oil capacity and listing the correct information in the manual.
Other than the bike pissing oil everywhere, I had a great trip. I spent the day yesterday riding the White Mountains. I rode the Kancamangus, Bear Notch Road, 113 over Evans Notch, Hurricane Mtn. Rd, Franconia Notch, Crawford Notch and across 302 all the way to rt. 100, which I took home. The bike ran great and I chased a Subaru WRX driven by a couple of flat-brimmed trucker hat wearing kids up I89 for 20 miles at 110mph. The engine turns exactly 5,000rpm at 100mph in 6th gear. It made me chuckle to imagine the engineers at Guzzi having a conversation: "Hey Luigi, what gear ratio should we use in 6th for the new California?" "I dunno, Mario. How about we do the math and make it turn 5,000rpm at 100mph?" The Italian idea of symmetry.