I've followed some of the discussions on which DCC system is best/preferred on the DCC forum. I'm currently operating DC in N Scale, and wonder whether N Scale forum members have any suggestions for preferred DCC systems/non-preferred systems in this scale? (I got no reply on the DCC forum - presumably all HO folk there ) I own a Precision Craft EMD 7 that has a chip installed - though it's difficult to ascertain which systems this chip is compatible with. Does anyone know this, or should I contact PCM to find out? Also, I'm useless at taking locos apart (and indeed putting them back together), so do you guys out there know whether there are any folk who'll put in N scale chips without charging an arm and a leg...?!