... adjust any wheels and the Tillig turnouts remain compatible. Looking at all those storage yards, you are not going to be short of wheels! I explained the different 00 standards in more detail at: topic 124- message 567 regards, Martin. posted: 9 Nov 2007 21:14 from: Martin Wynne Hi Gordon, Just to get a quick idea, I have broken up my previous design and dragged the bits round to a gentle curve. It looks better, but perhaps not as sweeping as might be wished: cjf_terminus3.png To put curved turnouts further round in the 48" approach curves, they can't be 1:7 and need to be C-10 or more. That means the diamonds and slips need to be 1:10 too, which means they must be switch-diamonds. A switch-diamond curved double slip is very impressive, but not perhaps the first choice for a novice track builder! p.s. I have mentioned the rail/gauge matter on the 00-SF group as the situation seems to me to be ...