I have my old Octatrack and the new MK2 at home right now and is testing them side by side.
On the original Octatrack you cant (for example) close the filter from fully open in one motion and hit all the values without pressing down the encoder which leads to stepping. value 83-69-54 for example.
On the new MK2 without pushing down the encoder you hit all the values but without the need to spin the encoder several times. just one spin and u hut all the values 1-127 and can go from fully open to closed. It feels so good!