Begin as for "Joe Cool" on a blocky hold and begin traversing right. Many options exist so look high and low if the sequence feels hard for V5. Turn the corner and continue on huge jugs, underclings, and slopers and exit up and right above a small boulder.
A variation to this problem (V2) begins on the arete and traverses only the juggy part of this problem. The Caldiero guidebook has caused confusion about the sequence and rating of this problem as he describes this easier variation as the full "V5". Either way, the problem is a lot of fun so get on it!
This problem begins as for "Joe Cool" (V3 R) near the northwest corner of the Cake Boulder.
A crashpad and a good buddy to keep it under you as you traverse would be ideal. Some may want to pad the small boulder below the topout as well.
By Nat Smale
From: Salt Lake City, UT
Feb 9, 2013
This problem is described differently in different sources. In the Utah Bouldering guide, Stumblebum Traverse starts further left, at the base of Joe Cool. This adds several difficult moves, and is quite a bit harder; probably V5.