Hello! I recently acquired a second-run N scale Life-Like 0-8-0. I understand room in the tender for the decoder is somewhat cramped. Has anyone used the ESU 53661 in this loco? Toytrainheaven has some excellent deals on older ESU decoders in their DCC close-out sale (
https://toytrainheaven.com/product-category/esu-close-out-sale/), including the 53661.
While I'm at it, does anyone know the difference between the 53661 and the 53661-02? The sale includes both.