i realise this is digging up a thread a couple of years later...anywho
we did Genuine Wage Overhang a couple of days ago....
would agree with the grade & stars - around 20 seems right - its a unique and interesting climb - which from the looks of it, has recieved minimal traffic over the years. Its also less thrutchy/horrendous than it appears from the ground - less so than say electra.
In terms of the gear I had two #4 camalots - this was insuffient - I was runout 5m+ by the time i got up in to the innards of the chimney to place more gear! ... Two #4 and 1x #5 camalot would suffice for the wide bit i reckon