F'nor question

[Biotrooper]

I did a search but did not see this in the posts...
So in Dragonflight, F'nor and company go back 10 turns to "grow up" the dragons to fight the 2nd fall. So F'nor will have aged 10 years while he was in the southern wyer. When he returns to the current time to fight wouldn't he look older and in fact be F'lar older younger brother? My reading of the book just says that his thread score was healed and he was well tanned. Would not the other people have noted how he aged in three days along with all the others?

[Brenda]

They went back to a point in time ten years earlier, then lived at a normal pace for three years before returning to a point in time two days after they had left. F'nor actually came forward twice on his own to give updates - once after Prideth's first clutch was laid, and once to say that they couldn't hold out much longer. So at the end, F'nor and F'lar were basically the same age instead of F'lar being a couple of years older. But with a lot more experience after just two days for F'lar.