Speaking of fingon, I sort of assumed a lot of differences between your canon, and silm canon, like him being a healer, started with "well these are humans not magic elves, so he needs to be able to cut someone's hand off on a mountain and not have them just die" and developed from there.
From what I recall (co authors chime in with your recollections too, please): That is exactly why our Fingon is a doctor, haha! As well as I think we were like Fingon was something of a golden boy in the Silm, and it feels like he is to an extent Tolkien’s image of what a paragon of Noldorin potential is, like Diomedes for the Greeks. And as a big through-line in LotR is the importance of Healing, and the hands of the king are the hands of a healer and all that, it just made sense.


















