From time to time the pistol factories do not hold the best tolerances. My plates are extremely consistent in size and if your slide and plate do not have the best fit possible, I will get you a plate that does fit your slide.
Screw torque specs: I recommend the 6-32 screws be torqued between 15-20 inch/lbs. It is best to walk the screws up to spec. Start lower and slowly increase each screw to the torque spec.