I have been shooting them for several years and have seen no problem. However with that said, if you run the ballistics through a software simulator you will find that our long shots are not long enough to have much impact on a 9mm (wind, bullet weight variance, normal powder load variance, etc). As I recall when I did the simulations a 50ft per second drop in velocity resulted in a 2 tenths of an inch drop at 20 yrds.
Bottom line, once you dial in your sights for your load it is typically going to be the shooter that is causing the issue. If you listen to the Ben Stoeger POD cast he has said the same thing many times.