I think that the following are bugs - and bugs that predate 0.3.16
I'm running Windows 64bit.
Cura. Can't have a brim if skirt is greater than 0.
Cura vs Slic3r.
Under Cura, using these settings: z offset = +0.2,, skirt = 0 (otherwise can't get a brim), brim = 10, printing on FlashForge clone of BuldTak, I get good results.
Changing to Slic3r, other settings the same, the nozzle is at least 04mm above the print surface as I could slip 4 sheets of printing paper between the nozzle and the print surface while the first layer was being printed.