Hmmm... I checked in game and I didn't notice holes inside Mercedes or RedBull halo... but maybe my T-cam isn't set correctly to see it.... Could you post a screenshot, please?
Ah that, was thinking of something else. Yeah noticed those as well. Also the Ferrari one being asymmetrical at the center mounting. Got to be honest though, got no clue how it is on the real car since I avoid looking at the halo. [i.imgur.com]