The thin pin scarred seams right of swan slab gully.
Place pro where you can and go for it, and don't skip placing a piece in the horizontal crack at 2/3 height(there is a wider slot over to the rigth in this crack but a SMALL cam will fit)!
If you send this easy, consider going for the 5.10a right of Grants Crack! Reid's book shows this as a 5.7 and the S.T. guide doesn't include it at all. Both my partner and I feel like it is closer to 5.8. But you all decide.
Small cams and nuts (a wider slot on the right side of the horizontal would take a green or red BD C4). Belay at top or move left to the gully tree and lower off and TR second.