no idea about dcc, but each steamer takes curves differently, and remember that blind drivers have a purpose -in HO or 12" to the foot...on 18" snaptrack -gosh 40 year ago??? My tyco ten wheeler couldn't do it, my dad and an old uncle had the idea to 'bank' the curves like the real thing, or a race track. Did the trick- laying flex track to 20 inch cured it on the flat. Bought a 2-10-2 latley, took the 18" I still have in sidings no swet. The stiff looking mallets might take a 15", never tried it, but I bet in every lot of models, some will, some won't, but I still bank all my curves, my mainline is 26", still bring one home now and then that can't deal with it without fiddling around with the wheels or pivots-and get an NMRA guage tool- good luck- tony