[Elecraft] SN 5366 question before final test and alignment

[Charlie, W0YG]

I am installing the heat since on my basic K2 #5366.  The instructions say 
to remove all masking tape except that covering the transverter and receive 
antenna holes (I know I am going to add the separate receive later). 
However there is no masking tape over these holes.

There is however a green film over the holes that the finals mount to for 
heatsink purposes. I assume this film is also to be removed?  How else would 
the heatsink conduct heat away unless it was thermal pad to metal 
conduction.

Just confirm for me this green film needs to be removed.  Thanks.

73,

Charlie, W0YG..>>