Has anyone tried the new LaserLyte rear sight conversion? It replaces the standard 2 dot sight and looks like it might be a good alternative to the sight attached to the picatinny rail on my XDM. You can see it at laserlight.com and look under "rear sight". This doesn't interfere with holster and negates the need for a special holster to allow for the picatinny sight. Any info will be appreciated. Thanks, Pete