I don't want to piss on anyone's chips here but there are four reasons why Nik's wall is unrepeated. First, its hard. Second, because its at a venue which isn't popular for no good reasons. I don't know of anyone who has tried it seriously, simply because Rivelin is a one-trip-a-season-at-most kind of venue. Basically, if you're making a rare trip to the peak go somewhere good. Yes there's every chance the hard classics will be in condition, if its cool. It might not be. Over the last ten years I've discovered you can get good grit conditions anytime of year, it can be great in July and boiling in February. All that changes are the odds of it happening.
I thought that when I first saw pebble wall at the cliff all those years ago. Then watching Streaky Desroy piss it and thought, wow that's inspiring.
Tick marks do have their uses: blind and slappy holds, not uber jugs right in front of your face at the sitting start.
A group bumbling up birds nest crack did look at me like I was some sort of weirdo!!
Amazing you did Blackhead as I think I was fully stretched. Did your feet come off. The break is pretty poor. Fantastic problem actually.What's the nose LH sitter?