just had my car tinted with formula 1 pinnacle. my tinter pulled the gasket to double check, and i saw the gasket, at least on my 2013, it is already felted on both wipers, no need to cut or apply moleskin.
Past: 2004 S60R 6MT
Past: 2007 E90 335i 6MT
Past: 2010 335xi ZMP, MPPK, MPE
Past: 2013 335i 6MT ZMM/ZDH/ZTP/3AG/494/508
Present: 2016 F34 335i xDrive ZCW/ZDA/ZDH/ZTP/ZMP/2V5/5DL