I added a Tsunami Medium Steam sound decoder in my Frisco #1632 which is a Russian. Does anyone know which whistle option is right for the Frisco? The default is a 6 chime Railroad Administration and another choice is a Nathan 5 chime plus some B&O whistles and what not. This decoder really brings new life into this model. The motor control is silky smooth and the sugar cube speaker is great. I still need to stuff everything inside the tender shell. A big thanks to Keith for the decoder opportunity.