[JohnKSa]

I disagree with using brute force to remove the mag floorplate.

The method I described is the one taught in the Glock Armorer's course.

The end result is damage to the tab and recess/slot.

It does tend to round them off slightly but the effect is minimal. I can assure you that the result is much less severe than reshaping the tabs with a knife.

The method I described also totally eliminates the possibility of damage to the magazine resulting from squeezing the magazine with pliers.

This damage may eventually appear as a bulge at the floorplate causing seating issues of the mag into the pistol or shortened life of the floorplate.

I have difficulty believing that it would cause any problems at all given that Glock recommends this method for magazine disassembly. I have yet to experience any problems as a result of using the technique on my magazines.

Generally in mechanics using a high degree of force is not a good thing.

Generally this is true. This case is an exception to the general rule.