So I want to get a new .40 pistol. The intended use is SHTF pistol/range fun. I'm not worried about concealment. I'm thinking I want to get the new M&P 2.0, but I'm torn between the 5" long slide, and the 4.25" regular length. What are the advantages of the 5" (which I would have to wait for in black) vs. the 4.25" (which is available now.) What I was thinking the advantages were are: - Less recoil - Less blast - More bullet velocity = greater damage to the target - Longer sight radius for more accurate shooting at longer distances Are these assumptions all true? What do you guys recommend?