Hi, I am looking at a Chiltern working on RTT and it is 'pathed as class 158'. I am fully aware that this is for timings only and is not necessarily the type of stock allocated to the working. In this case it most certainly will not be as Chiltern have no 158s. However, Virgin workings between New Street and Euston (or vice versa) say either: Timed for 125mph max Pathed as Diesel Multiple Unit Or, Timed for 125mph max Class 390 EMU From this, am I able to actually deduce which workings are the 390s and which are the 221s, or is it still the same old story of the class being listed for timing purposes only? If this assumption is incorrect do any of you have any information in regards to the allocation of stock on workings between the two stations? It's become more confusing since the New Street/Wolves to Euston and New Street to Scotland services were combined. Therefore my old trick of a service starting/ending at New Street or Wolves being a 390 can't be all that relied upon. Thanks, Chris.