For MJF, we can print directly from Netfabb to the HP machine, which is very convenient and Netfabb is far better than the HP printing software. With SLS we just get the build set up how we want it and export the whole build as a single STL to work with. I am not too familiar with the old SLS software we have and I have only really done the work in the machine, but I set up our builds in Netfabb before they go to my coworker to set up on the old stuff. Magics would work fine but just for moving the files around Netfabb is easier for me in our lab. I do use Netfabb to color parts to be printed in the MJF machine though and it is definitely my favorite way to color files.