The wife is footing the bill on a new handgun for me for our anniversary! Woohoo! I have decided to get a S&W M&P 40 full size. Buckeye Outdoors has them on sale for $479.00. My question is, should I shoot a higher quality ammo through it for an allotted amount of "break in" time? If so what are you guys recommendation on ammo and how many rounds for the break in period?