I have almost a fully covered system and there are no weaknesses whatsoever, just a blacker background and more resolution.
I put everything in separate compartments inside the chassis so as little as possible is touching anything. I put scotch tape at the bottom edges to avoid short circuits and keep the paper elevated a few mm above the circuit boards. The paper is separated 1-2 cm from all cables.
I used 33 sheets of ERS and 1 roll of scotch tape to do it. The only thing I haven't covered is my speaker cable, I used up all the paper in a few days.
I put everything in separate compartments inside the chassis so as little as possible is touching anything. I put scotch tape at the bottom edges to avoid short circuits and keep the paper elevated a few mm above the circuit boards. The paper is separated 1-2 cm from all cables.
I used 33 sheets of ERS and 1 roll of scotch tape to do it. The only thing I haven't covered is my speaker cable, I used up all the paper in a few days.