Been upgrading a bunch the last year or so. Pretty much happy with this system. Still limited by WAF but coming along. Cannot touch the room. The new speakers really do the job. Power cables and IC's middle of the road.
I have the Studio Electric FSX and they are wonderful. Agree, Dave is super easy to work with. He even offered to come to my house to implement a custom mod.
Your cables and ICs are fine. Like the speakers not a fan of the silver grills though. Did hear M5 and they can fill the room. Well thought out system.