I didn't know this was a thing! I need help, how do I do it? I has so many decks that could use a trim...oh nm, links at the top, right. *too excited to think right now*
It feels a little sacrilege though. ^^ I guess if its a new deck without much use or wear its not really altering something that you've already connected with, and may even help you connect better.
I know I could use the help. I have the smallest hands of any person I know. Its what kept me from doing anything useful with a piano.