Busier doesn't necessarily mean more complex, though sometimes it may.
I was thinking primarily of tad suggesting SS Band 2 and KK Band 3 when, to give it its proper title, Essex is actually busier and more complex than KK yet anecdotaly it would appear to be not thought so.
Anyway, what will everyone say when KK, SS, GW et al end up as Band 6 after the next pay round as they're part of the south coast mega-centre?