A reachy and balancy route. Start with a hand jam, then pull on pockets, slopers (of course), and side pulls. Might feel much harder than 5.9+ if you have not gotten used to the typical features and style/movement encountered at Castle Hill.
Look for a boulder with horizontal streaks, like a washboard pattern, perched relatively high. Then head downhill about 50-100' and look for a boulder with many large pockets and huecos facing the main approach trail and pastures. It took us an embarrassingly long time to find this route, so I'm in no position to offer approach beta.