I did read somewhere once that there was an optimum wet time for RC paper. The author said that prolonging the wet time caused some loss of the optical brighters. Something I never got round to testing.
I'll have to see if I can find it in the relevant book.
Got it.
Black and white photography by John Wasley. From Focal Press, The photographers library.
page 129 & 132
'The optimum wet-time for a RC paper is 8 minutes. .... 2 minutes developer, 10 seconds stop bath, 2 minutes fixation, 4 minutes wash. ... papers must come out of the wash after 4 minutes; any longer, and the brightness and contrast begin to deteriorate. ...dissolution of the brightener may leave the print with a mottled appearance showing clearly in the lighter and middle tones.'
However the processing step are notably different to Ilford's.
1 min developer, 10 secs stop, 30 seconds fix and 2 minutes wash.
Mike