What LOVES to repeat for me are two wall-wart plugs I use, one by Jasco, and the other from Hank. (I know, no one has heard of a Hank plug, but it's real, and I got one.)
These are the two top repeaters by far on my mesh, nothing else in my mesh repeats for more than 2 devices.
I wrote up a story about the Hank a while back...the ugly little plug that could.
