Thanks for the beta - I'll format it into the page.
As explained in the Guidebook there is a shortcut trail leading to a saddle between Arrowhead Lake and the Northwest valley above Lonesome lake and directly below Warbonnett, Warroior 1 and Pingora. From Big Sandy, continue on the main trail past North Lake and up to the first saddle which brings you above Arrowhead lake. You will descend slightly, but before the ascent begins towards Jackass Pass, take the faint left trail towards the Northwest and eventually, Arrowhead Lake. Follow the faint trail across the talus field and diagonally upwards towards the sheer walls and base of Warbonnett. Continuing upwards, follow the well established trail behind the large boulder and down the other side. Continue on the trail and across the valley to any one of the killer campsites available. Leave no trace.