In my opinion, such a practice would have no effect on trigger pull. The only things affecting trigger pull would be the strength of the firing pin spring, the angle of the sear notch on the firing pin, the smoothness of the sear and the adjustment screw on the trigger spring. All the safety does is move a block to prevent the trigger (and sear) from moving. When it's retracted, the trigger and sear are free to move. No significant additional friction is provided by the safety mechanism. I would consider removal of the safety to be a dangerous thing, and would never recommend it.

John

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- Cogito, ergo armatus sum -