I don't run that much power on my layout at any time .I have each block or track in my case on only one 180 watt brick. Its more than enough. Maybe if youre running pulmore motors it not ok but with DC motors its plenty. . With more power youre gonna need better breakers. Im running 500 feet of track on one brick. Works fine .
I went to see the my project in RR-Track and I have 205 feet only ! So I will take out one 180 power brick !
Thanks you all Guys !