A few years ago I purchased Hornby Live Steam. I learned through practice how to control the powerful locomotives! I do not have the space for a permanent layout in my flat so I created an oval track using four portable baseboards which I could link together. Then being bitten by the model railway bug I thought why not add a DCC oval? So I now had a double track oval, the outer 4th radius for Live Steam and the inner 3rd radius for DCC. This got a bit boring so I decided to link the tracks using points and some rewiring The track is Hornby. Finding that 'express points' would require serious cutting of my existing tracks to accommodate, I elected to use standard points as they slotted in very easily. That is when the problems started! Standard points are 2nd radius. I found to my cost that my close-coupled Pullman coaches would derail at the points. Then I found that coaches which I had fitted with corridor connections would also derail because of connections fouling on point curves. Also combining the two ovals meant that all the track could get contaminated by the live steam locomotives - they can drop oil. This affected DCC unless the track was scrupulously pre-cleaned. I now think that I may need to reduce the realism aspect and remove all my coach corridor connections because satisfactory running is ultimately the requirement which should take precedence. Maybe in view of space considerations I should have gone the 'n' gauge route for DCC and kept my systems separate? Anyway I might still upgrade my points and modify my track instead!