As Ronald Reagan always said, "Well...."
As regards powder loads, don't pay any attention to the Manuals. They were written by lawyers not shooters.
Start small and work up to the load that works best for you in each individual pistol.
The final load will be a compromise between small enough to provide good accuracy and performance while keeping the forces that the pistol has to absorb at a low level and large enough to make the smoke, flash, recoil and noise of sufficient quantity to satisfy your inner child.
Tnx,