I own a S&W 386 PD. It has a standard "V" rear adjustable sight and a Hi-Viz red front sight. I cannot find the correct sight picture with this combination. I can hit shots at 25 yards on a 12" target, but placement is not well grouped. I've tried putting the red dot "in" the V rear sight, and I've tried laying the dot just above the V, using the top of the dot base, level with the top of the V. What is the correct sight picture? I love my 386 PD, the carry weight and capacity and of course my favorite .357 mag cal. I'm pleased that I can hit 12" at 25 yds all with such a short barrel but feel I could do better if I wasn't guessing at the sight picture. I wrote S&W but have not yet received a response. Any help out there? Thanks.