I've never found it to be difficult, make sure the bike is on the centerstand and check it after it's been sitting a while after a run. You will get a fair amount of level variance depending on how long you ran the bike prior to checking due to some oil staying up in the oil coolers. From what I understand there is a oil cooler thermostat that may keep some oil up there unless the bike is thoroughly warmed up.
Just simply look at the sight glass and keep it near the center of the window.
The real issue I have is being able to disscern IF in fact, the oil level is really where I think it is. It is still difficult to check and my fear is over filling as well as running a bit dry.
The bike has 55,000 miles on it and seems to be in good working order but it could be due for a good tune up.
Die Klockwerken Antique Clock Repair & Restoration, Cleveland, Ohio
The only thing worse that the 'Sight glass' set up is the procedure on the new Guzzi Norge. Seems like they forgot to put an access hole in that bueatiful fairing so that a person could get to the dipstick. Now that's a problem.
Harry Costello -- Jersey Shore
2007 R1200R
1974 + 75 CB125S
1971 R75
2020 Guzzi V85TT
BMWMOA 57358