It seems that this good pitch doesn't get as much traffic as it merits because of a somewhat undeserved reputation as unsafe. Good rock, position and continuouness on the upper section.
Start in a left-facing corner, on the left side of the arete, just left of a wide, 20' high flake. Go up easily for a couple of bolts, then move right and gain the arete (crux). Follow enjoyable climbing on the right side of the arete to the anchors.
There is some cause for concern that a fall around the 4th and 5th bolts could land you on the flake. Since the harder moves in this section are by the bolts, this hazard shouldn't come in to play though the belayer should pay close attention and minimize slack through this section.
This is on a prominent, left-facing arete at the left end of Cactus.
Keep in mind, this route was completely rebolted in 2005 (or so), and much of danger in the clips that previously would have landed you on the ledge was removed. The direct start was added at that time. The original gear was complete garbage, including the top anchor which consisted of one split shaft bolt (circa 1980s) and a drilled pin, which I wiggled out with my fingers. Talk about scary! In addition, about 200 lbs of loose rock was cleaned off the route. The result is a pristine, clean, and safe route, one that IMO is one of the best of the grade at Shelf.