When I originally built my layout I intended on eventually going DCC. One of the things that prevented me from doing it initally was cost. Another was lack of knowledge about DCC. The third was that the majority of the locomotives that I need for my chosen prototype take a substantial amount of work, to include milling frames, to install decoders in. I started off with two small trainset powerpacks as a temporary expedient until I decided what to do for a control system.. I decided to wire my layout up so that it would be "DCC Ready" when I did decide to purchase a DCC system. I isolated all turnouts and provided power and ground feeders to each of them and to every section of continuous track between turnouts. All continuous track between turnouts was soldered to provide good electrical contact. I used Skotch-Lok connectors to connect the feeders to my main busses. When I wired it up I had four blocks and two reversing circuits for my wyes. I used Atlas Controllers and Selectors and figured that if I got a DCC system I could connect it up and throw all the switches one way. I then stumbled across a deal on two MegaTech X6000 power supplies, new in the box, for $70. I hooked them up and had two outstanding controllers with walkarounds for dual cab control. More info is here: http://www.megatech.com/images_5.0/product_reviews/MegaX6000.pdf I really like these. I normally operate alone and I only have 4 locomotives that will accept drop in decoders. I figure that I have way to much to do to get my layout into the operational shape that I want to worry about trying to install decoders in all of my locomotives at this point. I am really satisfied with my controllers and I do not see a need to switch over to DCC right now. Now that I have gotten my layout to the point of working out my operations, I find that my blocking scheme is inadequate to fully support my operational scheme. I feel that I need to reblock my layout. I still want to make it "DCC Ready" though. I figure that one day I probably will go DCC, I just don't feel that now is the time to do it. What I am interested in is blocking the layout to allow 2 trains to work simultaneously and give the maximum amount of flexibilty while doing so. My layout currently looks like this. In an operating session there are four trains that come onto the layout from staging. All trains from staging enter the layout through the wye on the lower right. One track will represent Monticello, Arkansas and will hold the AD&N local. It will be the first train on to the layout and will come in to the A/D track, which is the green curve between Pond Yard and the Mainline, drop the train and the power will head to the barn. AD&N switchers will break down the train. The MoPac 785 will come in and work the interchange at Front Yard and then leave as 786 and head back to the MoPac yard at MeGehee, Arkansas/staging. The A&LM Gator will come in and work the interchange at Front Yard and head back to the A&LM Yard at Monroe, Louisiana/staging. The Rock 777 will come in and work the interchange at Front Yard and then leave as 778 and head back to the Rock Island Yard at Tinsman, Arkansas/staging. Meanwhile the AD&N switcher has been working the whole time and has built the next AD&N local to go to Monticello. Arkansas. The crew comes on, hooks to their train and The AD&N local exits to Monticello, Arkansas/staging. All four roads interchange at Front Yard on the layout. AD&N switchers work Pond Yard, which is the AD&N's home yard. Only AD&N switchers work the mills or the pulpwood yard. AD&N switchers leave cars at Front Yard for interchange with the three foreign roads. They also pickup the setouts that the foreign roads leave at Front Yard for the AD&N and the mills. Foreign power only works on the Mainline and making setouts and pickups at Front Yard. While the road trains come onto the layout in sequence, at least one AD&N switcher will be switching the mills and working Pond Yard. Between road trains, two AD&N switchers can work. All tracks except the two legs of the wye at the bottom right of the layout and staging are within AD&N yard limits. Operations are ran from a sequential timetable for the road trains. This is the sequence of an actual day as it occured on the prototype. I do not currenlty employ a fast clock. I need to get better at ops before I worry about the clock. An operational day ends when the AD&N local leaves and all other cars have been switched to their proper location at the mills. Car Cards and Waybills are used to control car forwarding. The staging yard is connected like this: How would you block the layout to facilitate operations? I am not talking about electrical considerations. Those have been addressed and my layout works fine in that sense. Al Silverstein gave me good advice and even drew me a diagram on how to wire up my layout. What do you take into consideration when thinking of seperating a layout into blocks for operations? I have an idea on how I want to do it, but I thought I would ask for suggestions before I disconnect the busses.