Anybody ever use the EOTech 512, or the 517? I have never used one and am looking into one for my Beryl clone. It seems that the Pols like them on their rifles. I have also been looking at the Aimpoint M2 red dot. I know that these are apples and oranges. The EOTech is a laser holograph and the Aimpoint is a red dot. Any ideas or personal experience with either of these optics? Any input would be appreciated.