I just recently upgrade my X20 to the PX50 and in doing so I decided to keep a couple of the existing X20 nodes to expand coverage in my home. The initial setup was one node on the first floor and two on the second. With the extra X20 nodes, i now have four on the second floor with still only one on the first. The first floor is very open, its the second that has all the rooms with walls and such. The way I have them set is not a perfect sqare but more like an irregular triangle with one of the X20 nodes in my kids room in the corner of the house. The other is in the main bedroom and i could probably do away with that one as its pretty close to the main PX50 (less than 8ft through the walls).

I drew a crude diagram of the layout with the 3rd PX50 being marked appropriately on the 1st floor in relation to the others on the 2nd. Im just curious if i am hindering my wifi performance by saturating my house with coverage?