I haven't done as many as Bill Lane, but I have done about 40 DCC installations into S locos.? Tsunami 2 - 2200 series has become my decoder of choice (plus the CurrentKeeper).? Great sound and the 2200's give far more volume than the one-amp decoders.? However, when I want to include a smoke unit or control an existing smoke unit in the AF U boats, SD70ac's or E44ac's, I use the TCS 501's.? Here's a video on how I do my installations of Tsunami 2200's in American Models diesels....https://youtu.be/3dEXesqkUEw?si=16MOC6AwMOnK36LI
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