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Technically Dano, you're not blocking in DCC for signals, as your only gapping 1 rail, leaving the other as a common line. <br /> <br />the only thing close to blocking with DCC is is multiple power districts (when you need more power supplies due to exceeded the amp of one), whuich is rare on home layouts as most people won't be running the 10-12 loco's to max out one 5 amp supply, even a 2.5 amp supply will do for most as it can handle 5-6 loco's.
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