Alan,
There are DCC experts on this forum that can help you with the DCC part of your question. However, if your locomotive is running, but not with a 'jerky/stop-start' character, I don't think the tender pickups are a problem (though it would be good if all the brass pickups were making contact where they are supposed to ... generally, I think, on Spectrum tenders the brass pickups touch the axles, not the wheels. My Spectrum steam locomotives have pickups making contact with the drivers).
If your locomotive runs 'smoothly', but just needs lots more power than it used to use, then I think you have some other type of elecrical problem ... maybe a motor that is wearing out, if you have run it for lots of hours. I have a 'DCC ready' Spectrum 2-8-0 that runs great, but I use only DC power.
lanny nicolet
There are DCC experts on this forum that can help you with the DCC part of your question. However, if your locomotive is running, but not with a 'jerky/stop-start' character, I don't think the tender pickups are a problem (though it would be good if all the brass pickups were making contact where they are supposed to ... generally, I think, on Spectrum tenders the brass pickups touch the axles, not the wheels. My Spectrum steam locomotives have pickups making contact with the drivers).
If your locomotive runs 'smoothly', but just needs lots more power than it used to use, then I think you have some other type of elecrical problem ... maybe a motor that is wearing out, if you have run it for lots of hours. I have a 'DCC ready' Spectrum 2-8-0 that runs great, but I use only DC power.
lanny nicolet