I believe Swindon to Cardiff Central Via Bristol Parkway and Bristol Temple Meads would be a fantastic addition to TSW3. Firstly it would include a variety of high speed runs using the Class 800/802 for GWR running from Swindon to Bristol Temple Meads calling at Chippenham and Bath Spa as well as the runs from Swindon to Cardiff Central calling at Bristol Parkway and Newport. It also includes Stoke Gifford IEP Depot for ECS moves all over the route. You also get a few Class 387s doing the Cardiff runs which you could layer in from London Commuter. For local services you have the Class 166 on Portsmouth to Cardiff that would run from Bath Spa to Cardiff Central with the potential of a Class 158 DLC for these. You also get the Class 43 HST in Castle formation running stopping services from Bristol Temple Meads to Cardiff Central calling at the majority of stations. The Class 158/166 can also substitute in for these. You also get the Westbury to Gloucester services running from Bath to Bristol Parkway. There is a huge amount of Freight traffic on this route using the Class 66 in EWS and Freightliner Livery's and a potential DLC of the class 70. The class 150 from West Cornwall could be put into TFW Livery for the services in Wales as well as the Class 158 DLC in TFW for more runs between Cardiff, Newport and Severn Tunnel Junction as well as the GWR Services.
