I recently put a new mp compact in layaway and was wondering if any of you folks have ever had a difficult time disassembling and reassembling your firearm? The reason I ask is because the salesman who sold me mine, couldn't get the gun reassemble. The slide went back about 3/4ths of the way but stopped at the point. He tried to disassemble and reassemble it again, and it jammed again. He then departed to another room in the store reserved for empoyees, returned about 3 minutes later, and said, "It's just stiff." By the way the gun was reassembled at that point. I then went to the front desk to put it in layaway asking no further questions. What would you guys do if it were you? I asked this same question on another gun forum, but being as this is an M&P forum, I thought I would get your perspective on things. Does this behavior typify the M&P? Thanks.