... correction, looking again at the drawing it would appear that there is no extension through the stock rail- I assume therefore that the switchblade relies on the undercut of the planing to ensure against lift? Am I right in assuming that the extension is primarily used where the stock rail is joggled? Last edited on 24 Oct 2017 08:44 by Tim Lee posted: 23 Oct 2017 14:16 from: Tim Lee A couple of further images which might suggest this practice on rodding was not limited to sidings etc. 2999_230913_440000000.jpg 2999_230916_080000000.jpg posted: 23 Oct 2017 14:45 from: Martin Wynne Hi Tim, Interesting that in the first pic there are 2 timbers in the switch front. In the second pic only 1 timber. Something else to get right, when adding the fishplates. Nowadays the switch front timbers are indeed timbers (12" wide). In pre-group days they were often plain sleepers (10" wide). Templot does include an option for this in the custom switch settings. So that's two more things to get ...