Peet,
Congrats. I agree that the flatnoses may be too short to cycle properly. Perhaps a bullet more close to the original trapezoid shape will handle better. OAL is the most important aspect.
I recently showed a 1963 Swiss military manual to some of our 'P210' shooters. It clearly showed that the Swiss Luger outperformed the P210 on several points. Loved to see the look on their faces
Another trick you can use with not-too-good eyesight ,which no other pistol can do:
Pull the pistol towards you, bending your shooting arm, thus reducing distance between sights and eye. You'll see that while using this stance you will be able to improve on your accuracy. There is no need to shoot the luger with a stretched arm. A caricature postcard made in Switzerland in the early 1900's shows Georg Luger in this shooting pose, the rear toggle of his pistol only inches away from his face.
Disadvantage: cartridges dump on your head and in your collar.