Proper sitter from the slot to Intense, Burb South? I do recall this being pretty cool, but as for a being an LGP, its a bit fuzzy around the edges. I'm sure JB will bring me up on this if that is the case!
direct start of NTBTA
The obvious one is The Arch at Slipstones. Some other gaps spring to mind after a recent trip to Caley too, although they may not be "great" and/or may have already been climbed - the wall to the left of Secret Seventh, the arete near Ranieri's Reach, and the wall to the left of the Pinch? Are there any gaps left on the Great Flake boulder too?
Doing new stuff at Brimham always struck me as a bit of a hiding-to-nothing because of the rock's scrittliness. The prospect of spending vast amounts of time working and cleaning something only for future climbers to brush it into submission, downgrade it and question your integrity! Admittedly some recent finds are great with good moves on aesthetic features. For example The Grouch was brilliant, but I still felt guilty for contributing to it's errosion into something lesser. Mind you, I still intend to get back on Crimpy Roof as soon as the weather allows!