[John Sabato]

Another possible solution to your question...I have had a similar problem with a matching luger some years ago, but modification of the sear is not the answer. Not wishing to modify the pistol I solved the problem by using some aluminum shim stock bent into an "L" shape with a good set of pliers that fit into the slot in the trigger where the sideplate trigger lever fits.

The short length of the L should be size to be a press fit into the bottom of the slot and the long end should be the same size as the length of the slot so it passes over the sideplate trigger lever.

once the correct size shim is determined it should eliminate the overtravel in your trigger... without modifying your pistol. The shim floats above the sideplate lever when the gun is assembled but does not interfere with its operation. Just be sure if you remove the sideplate that you don't lose your shim once you make it.