They say it shows signs it hasn't been fitted/running correctly.
Other than screw the cups in, I can't quite see what they are suggesting I have done wrong! As I say, the old one has run perfectly for over a year.
Strangly the King felt fine. It was only when I came to regrease the bearings, I drew the cranks out and the inner race stayed on the axle!
High price = high qaulity and good warranty, turns out it's niether!