My buddy had a PM9, and sold it before I had a chance to shoot it. He stated he liked the size of the gun but he would always shoot low, and that is why he sold it. I am looking at 1 of the 2 models listed but want to know if this is common with these models? He stated the gun was reliable bout shot 6-10" low at 10 yards. Before you ? his shooting ability he does very well at PPC, IDPA, and IPSC.