Very Impressive, I will have to have a try of foamex as I was thinking of starting with DAS, but your efforts have made me think foamex would be easier and less messy! What type of couplings do you use? I'm about to start weathering/laying track on my P4 shunting layout and I can't decide on 3 link, or put normal magnets or an electromagnet underneath but I need to decide before I stick it all down lol.
Cheers