[Thor]

I think you will find with the current 7,65 mm loadings the new springs might be a bit strong. Check the ejection first, does the Luger kick the empty briskly, perhaps 8 feet in the air? That is about right. If it just dribbles out, you dont need a stronger spring. I do think most 9mms can benefit from a standard weight spring. Too strong a spring and you can have failures to eject. Too weak a spring and you can break an ejector, or crack a rear toggle. I would sugguest shooting the gun with the loads you plan to use in it and witness the ejection prior to spring replacements or better yet, have another shooter fire it and you watch the emptys fire up and out of the Luger. Wolff are the springs I use in my restoration. excellent.