Come on guys...lets use some common sense. Yes, DT ammo is good in terms of not exploding your gun. However, if you are aware of bullet ballistics, then DT is not a good choice in some situations. the 115 gr. 9mm round that DT makes travels at over 1400fps. This is well above Speers velocity envelope. Why do you think Speer markets its +P 124 gr. round at 1220fps? This is the velocity out of a 4 inch barrel that the round performs the best at. Faster is not always better.
You are risking the bullet fragmenting badly on impact if it is going too fast. Now, I am not question the quality control of DT, but I am questioning the value of added velocity. The 124 +P gold dot bullet that the NYPD and DT use works great at 1220 fps. Why push it so much faster? There is no added advantage if you shot falls apart in the target and fails to expand.