Had a moment of deja vu, then realised Seb was talking about this spot in his Jamcrack podcast interview, looks good.
Yeah Grimer mentions the area too when talking to Seb, I did a few problems on the side of the QK cave when writing the Crag for the BMC Froggatt guide and we both visited one evening for a recce about 2002.
The Quarryman's Kitchen has a big drop under it and so we didn't pursue the area further as you had to be pretty cool headed to top out on some of the problems which are all pretty slopey finishes until you head right past a big block and the walls are safer & steeper.
Then Seb went along a few years back and did them all which was a good effort as you needed to clean the top quite a bit and also did a load of bold trad stuff on Yarncliffe Edge, which he put in the new routes book in Outside at the time.
Neds effort on The Boss takes a brave spotter with that drop and speaking of landings which fall away, I found another Quarryman’s shelter / roof thing we never went back to until last year, which is in between Yarncliffe Quarry and the QK Cave, which has a few project lines.