Mike,
I'll probably also buy the 8 amp as it doesn't cost that much more: more power is good.
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New improved tonnage ratings for the motive power!
Got some more PM done on the lower yard.
A friend talked me into using new steel wheels (intermountain) so a lot of cars got new wheel sets. I also had a lot of kadee wheel sets. Will need to buy more.
The wheel sets definitely make the car roll better. Also, nice 'wheel sounds' when the train passes.
The old:
And the new:
Did some DCC testing with a full train.
GN S-2 4-8-4 at Steven's pass:
https://www.youtube.com/watch?v=dy2gX47mqyU
GN S-2 at Chumstick canyon trestle:
https://www.youtube.com/watch?v=tjTBA9apMWo
GN S-2 at Everett (camera battery died on this last video):