Black protective sheath on underside of top case: necessary?
When I took the top case off my MBP to replace the keyboard (wanted to change the layout) I noticed that the black sheath on the underside was already gone, obviously it had been removed earlier for unknown reasons.
Now I wondered if it would be a good idea to put in a replacement for that or if it is ok to leave it as it is. Is there any danger of shorts? What could be used as a replacement material?
Is this a good question?