Doing my first GWE-WL run in a 45 and the low horn is really quiet, the high horn almost non-existent I've tried internal and external camera views. Service is "1C03 Penzance", a westbound service out of Paddington in 45111 ***EDIT*** Oh and the stop marker is in completely the wrong place at Reading. You end up with several carriages hanging off the end of the platform