Ok which would y'all consider the fantastic 4 and which is the dynamic duo. Fantastic 4? These are the 4 Colts I have had done. Two by BEC and two by IA. That would make the two SA built by BEC the dynamic duo. Or would the four BEC guns be the Fantastic 4 and the two Colts done by IA be the dynamic duo. I'm leaning to choice number two. But..... I never dreamed I would ever own guns like this.