I have a large (long) building with a main router (AC86U) with two mesh points. The first mesh point is about 60 feet from the main router with an ethernet backhaul. My question is - does it make a difference if I connect the second mesh point (another 70 feet further away, also ethernet backhaul) directly to the first mesh point or use a switch such that both mesh points are at the same level to the main router? I know that either way works - I am asking an efficiency question... (or better yet, what is considered the proper way)...