Thanks Megalodon, I've got that book. The thing is, I have only ever seen one photo of that plane and that is a closeup of Popkov standing by the rear fuselage, nothing showing the front of the aircraft. Profiles are only as good as the photos or other info they are based on, many involve a lot of "artistic license". I went with the profile shown in my link above (with no Guards banner) because Popkov himself endorsed it. It could be both profiles are right, that the banner was painted on after the other markings. However I'd need a photo of this aircraft or possibly a photo of another aircraft from the same squadron showing the banner on the nose to convince me.