The DZ-1000 are quite reliable, I think you'll have no problem with those. The only objection I have is they're quite a bit larger than the DZ-2500, occasionally that's an issue. However, the DZ-1000 has the little manual switch lever on top so you can change the switch position with no power on the switch machine, the DZ-2500 can only be switched under power. Not a problem once I get the layout wired, but right now it's a bit of a PITA as I just want to roll something over the tracks as a test and I have to carry a transformer around to momentarily power the switch to change positions.
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