Brian Williams <brianw1138@...>
If I understand your question correctly, Yes, the branch should have
bus wires seperate from the rest of the layout; feeding the output of
two boosters into each other is bad. Just be sure there is no polarity
difference at the rail gap. If your volt meter doesn't read zero volts
(AC) across the gap (of each rail) then you have a problem, switch the
wires coming off the boost, that should fix it.
Since you have a seperate set of bus wires, you need corresponding
feeders for the branch.