I finally got a chance to hold the M&P and I think that I've decided on getting one. My questions are simple. I am not going to be using this weapon for anything other than range shooting and possibly competitive shooting, if I ever even get to that point. What would be your thoughts on getting the 4.25" vs. 5" barrel length. Would one be a better choice than the other for a range gun? I have only been able to handle the 4.25" locally, so I don't know how the other would feel. Also, what is everyones opinion on the model with the ambidextrous manual safety? TIA.