... a play to see if we can improve matters a bit. I moved the switches (1 :24) as close as possible to the V-crossings. That meant shortening the V-crossing check rails by 12", and inserting an extra timber to support the switch tips. And the slip roads are no longer a circular arc, but have a straight middle portion with 36" radius curves off the switches. The result is that the slip roads almost clear the 120" K-crossing check rails: 00sf6_slip_mod.png 00sf6_slip_mod_print.png An important point to note is that there isn't room for both switch blades to be open at the same time between the wing rail fronts. All 4 blades at each end must move in unison. That's correct prototype practice when the slip is worked from a signal box. Sometimes with hand levers in a yard the slip switches can be worked independently, but that won't be possible with this design. Some care will be needed to set the open blade positions to clear flanges both sides. The 082d .box file is attached ...