What they need to add ASAP is clear and accurate screens 'there is X minutes wait at C border control and Y minutes wait at E border control'. Preferably even split in X1 EU passport at C and X2 non EU passport at C, Y1 and Y2 for E as well.

One does tend to wonder how it looks at the other end. I noticed the some of the gates are now C/D/E so they cb assign them as E gates to "force" people to use that passport control. C of course being the Schengen designation. 101 to 104.