Disclaimer-- I am not a gunsmith, this video is only for entertainment use only, This procedure and modification should be done by a Licensed qualified Gunsmith.
Well dang I’m going the other way, long fingers syndrome. Still got stock trigger and put a arched mainspring on it and still could use a little longer trigger, but it works for me. It’s a great 1911 for the money.
My long fingers did not match up well with the stock short trigger in my Springfield 1911. Replaced it with an ED brown long trigger. It was not a drop in part so I had to do some fitting like you did. Used 2000 grit sand paper instead of a stone. Worked out very well. Great video, Thor.