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: 2001 Orientblue E46 330i
Past: 2004 S60R 6MT
Past: 2007 E90 335i 6MT
Past: 2010 335xi ZMP, BMW Performance Kit, BMW Performance Exhaust
Present: 2013 335i 6MT ZMM/ZDH/ZTP/3AG/494/508