In reply to arose:
Had another think and a quick look at the guidebooks again.
There are still loads of missing routes (I stopped counting after a dozen), although mainly in the higher grades which are rarely, if ever, climbed. Orion Face, Pinnacle Buttress of the Tower and the Upper Cascade probably have the most. However there are a few lower grade ones such as:
Robin's Scoop (far right finish to Tower Scoop)
Mirror, Mirror (icefall between Glovers and The Gutter)
Rip Off (left of Five Finger Discount)
Perhaps more of an issue is that some common variations are not listed. It's debatable whether they should all be included but some of them are probably climbed more regularly than the many other variations that are currently listed:
Tower Scoop Left-Hand Finish
Glovers Chimney Right-Hand Finish
The White Line Original Start
Diana (First Pitch)
Number Three Gully Buttress - Quickstep Start
North Gully Left-Hand Finish
Waterfall Gully (First Pitch)
The route order is now much improved. The only obvious issue seems to be Pinnacle Buttress of the Tower.
Hope you feel that's useful.