Have been shooting my new to me P90. With the previous owner and now myself, it has about 450 rounds through it. At seven yards it shoots low about three to seven inches. If this was my Model 19 357, Tel Kec 9mm, or Kimber 45, I would be creating a nice tight group at point of aim for this extremely close distance. Since I am shooting 230 gr. ball I think I am going to need a front sight with a dot that is lower than the original. When I line the rear two dots with the bottom of the front sight where it touches the slide, I raise the hits to about correct. Wondered if any other P90 guys have found this problem. I know this gun is described as a match grade performing pistol. The rear can't be raised due to the dove tail. If no other front sights are available I could file the front sight to remove the dot crater and blue then redrill the dot lower. Still might not be low enough. I understand I can be a part of this new gun's poor performance. When I fire it the sights are pretty much dead on regarding the elevation of sight picture but the windage could drift a little. This is what I see after the hammer falls anyway. Wondered what you might have experienced and if other sights can match the original rear sight. I do like the Ruger three dot sights as they are but ...