I have been battling pretty hard on which rails to put on my new build. I am really leaning towards the DD 7.0 lite rail. But I have never used them and there are so many rail systems out there. I would hate to get one and then decide later on I like a different one better(has happened a few times already). Just for some more SA the gun is going to have a ACOG and standard FSB on it. What are some other highly regarded rails?