I think maybe that dmt slurry as the finisher may be the one that makes the difference. The dmt slurry cuts much faster than the tomo.
I notice the same thing...I am guessing it's due to the fact that larger particles are released with the DMT than with a tomo...Plus the DMT kinda 'roughs up' the surface of the awase, while a tomo tends to 'smooth it out'...Am I way off or is that sort of what happens?