Good Morning, I am completely new here so take it easy on me . I normally just argue stuff like this out with my partner, but I figured I would try out the forum and get a fresh perspective on things. We are installing a new 600A service for a multifamily rehab (3apt + public) and exploring are our options for service conductors. My initial thought was just to go with parallel 350s (AL by the way) in 2 x 2 1/2 conduit and call it a day. My partner on the other hand thinks with should go with 3 x 4/0 SEU parallel and eliminate the conduit? Other than cost, which is all he is arguing, do you guys see any advantage if one option over the other?