>>8588648And this is a measure of gauge but not scale, is this correct? Because looking at diagrams it does get confusing. Hornby OO is the most obvious, now some people profess that HO and OO are compatible so I don't know if this is between gauge and then that they are a different scale. N, I've looked at an N set, HO is quite big but if I built a set around the whole apartment it'd be ... unless it wasn't HO but O. Then it's do I go straight to DCC or analogue keeping it real?