Hi string gurus. I bought a new (used) bass tonight and it came with these strings that feel smooth to the touch. The ridges are there but I can't feel them when I play. I would like to switch all my basses to these strings but I don't know what kind they are? They look like D Addarios. I say that because they have color coded ends. Any help you can extend to help me ID these strings will be greatly appreciated. TIA.