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[quote user="gregc"] I don't understand he reasoning for track feeders that requires extra time and effort. it doesn't make sense (at least to me) to solder rails and then add feeders assuming some joints might break.[/quote] Soldering rail joints has two purposes 1) ensuring electrical contact 2) ensuring physical alignment [quote user="gregc"]allow expansion and determine the distance between feeders based on voltage drop.[/quote] Because calculating voltage drop alone does not ensure that in the instance of a fault, the cumulative resistance generated by all factors will trip the circuit breaker.  Voltage drop is only part of the story (already discussed).   Just a quick question for the Railandsail: Do you have field mice issues where you live?  Ive seen them chew through lots of electrical wiring (in cars for some reason).  Not sure if you have considered rodent access prevention for the helix. Also could be a source of a broken feeder, although a mouse nest on the locomotive pilot would probably be a good clue that there is a problem.
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