Not sure if this is the right section for this question....but....I did a search, and as I expected there were tons of results without a lot of relevant info. I'm also expecting to get different answers here so I'm basically looking to see if one type of file seems more popular or if somebody has an approach that seems to be more my style. I have a couple of nice Musikraft necks. One I didn't have to touch and it felt and played great right out of the box. The second (a maple fretboard like the first) had a couple of frets that weren't slotted deep enough so there were some high spots. After leveling those few areas I'm happy with that one as well. Now I'm working on the third one. This is a really nice quarter sawn neck with a rosewood board, but it had a fairly "sharp" edge. The frets have a real nice even bevel to them, they're level, and I rolled the fingerboard and removed any fret sprout which now brings me to an issue I haven't had to deal with before. The bevel seems almost perfect, and the edges are sharp so I need to round the ends of the frets. This is the one file I don't have and from watching videos I'm not sure if the rectangular file with the skinny ends smoothed out are generally preferred/easier to work with (especially for a first timer) or the triangular file with the three edges flattened. Anybody have a preference or a reason/method that makes one better than the other for themselves. It looks easy regardless of which file, but most of the videos are pros who know what they're doing. Thanks.