Firstly, dont discount doser grinders as messy and wasteful. You can mod the sweepers on the Mazzer to sweep pretty clean, and grinds can get stuck in the chute of doserless grinders. The Macap doser grinders sweep fairly clean.
Yes, doser grinders can throw the grinds around a bit but I learned to hold the group handle slightly to the left to compensate. You can also add the ring adapters to the group handle to provide a larger catchment area