Gumby 

There is an excellent variation to this climb that is the best single pitch climb I have done on the Morning Glory wall (the variation may have a name and should be listed as a different route?). After reaching the giant huecos, find a good stance and rest your arms. Instead of following the huecos up and right to end at the P1 Zebra-Zion anchors (5.easy), continue straight up on pocketed and crimpy face climbing to a set of bolted anchors. This is pumpy and delicate climbing that is very similar in character to the first part of Gumby. Done this way I would call the route 10b/c.

Perhaps the route has had some equipment changes in the two years since the description was posted? There were more like 7 bolts on this line, with the anchors well near 75 feet above the ground (not 40). The top three bolts linked thin, crimpy, slabby, beautifully delicate climbing with the juggy-monkey heuco-pulling below. Fun!!

The extension refered to in the comments above is called Morning Sky and is the natural line.

Gumby bails right on huge jugs to the Zebra Direct anchor to avoid a second crimpy crux higher on the slab.