Hey man, can you explain how all these RPis are causing the network issues?  Are a lot of pi's crashing and screwing up routes?  I have been running 3 different pi nodes with ssd and they are working ok.   You mentioned "DC card", do you mean the micro SD card?  Anyway im always interested in learning and would love to increase the reliability of my node.  Can you help provide a list of suitable hardware that someone could use to build a more reliable node?