I got a Danish Krag the other day to round out my collection of Krags.I now have an example of the U.S.  Nor. and Danish all of them sporters but thats alright with me. I would like to lighten the trigger pull on the Dane but it has a flat spring. Should I grind the spring narrower meaning width or thinner ? Thanks ,Kooler.

This has been recently posted.

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Not sure if my wire trick applies to Danish Krag trigger. Never saw one.

That trick from Parashooter will change the amount of the primary stage of the trigger pull. Since I have never seen a European Krag I am not even sure if they have a 2 stage trigger. It may have been a US thing.
To lighten the pull, I might be inclined to grind the spring thinner. I have a multitude of grinders and wheels that others may not have access to. Be careful not the heat and discolor the spring while grinding, the color will be an indication of heat and may damage the temper.
That said I do not think I would attempt it unless I had a spare in case things went south. A back up possibly could be made from a feeler gauge. I have made one that way for an import revolver.