As much as i like the X-Ray sights on my P229 Legion, i like Trijicon HDs better. Specifically Trijicon HDs with the orange front sight. I found the yellow washed out too easily. I don't have a problem with the front sight washing out on the X-Rays, but i definitely like the rear u-notch in the Trijicons better than the Sigs. That said, i'm not going to replace the x-ray sights on my Legion anytime soon.