like a Chinese fire drill trying to manage the frequencies
Lurve it!
YRP. HuFac studies have found that people start to load shed at between 6 - 10 under active vectors, based on personal experience in general ATC and sector specific etc and the
load shed may be things less stringent RT, not writing on strips, 'missing' stuff
(eg 6 - 10 on resolution headings with speeds attached ie "turn left heading xxx, maintain xxx, reduce speed to xxx"). There is some stuff around from research groups like NASA Ames, Flight Safety Foundation etc on this subject.