Adriatic- I have a carpet layout about 15ft long with 072 curves at each end about four drops, two on each side midway between the curves. I have a DCS setup with a TIU on one side with 180W PH and and a TMCC setup with the 135W PH with a Powermaster and a command base, independently about 6 feet down on the same side. Both setups are before the drops. I don't run them together, just separate.
Swap power supplies and if the difference doesn't follow then I'd have to say dcs control seems to have a torque advantage.
A finer asjustment on the controllers is all I can think of in command.
The powermaster implies conventonal, dcs has that ability alone. The shape of the power wave is different between those outputs though they do nearly the same thing.
So, that isn't sounding like 100% command control. More accurately; command systems acting as remote control electronic rheostat.
Actual command modes will have 14v-18v to the track full time and should run smoother.
I ony run conventional. And slower on the layouts (9 at the moment, 20" to 12x15' ) or with tight turns, or with plastics, than on the floor or with all metal loco's.