Analyzed track profile in NG topo. In round numbers AEG was 700 feet and elevation gain is minus 1000 feet. The Cave Creek TH is close to 1000 feet higher than the the Spur Cross TH. Doing the hike from Spur Cross to Cave Creek THs then would be 1700 feet AEG.
A beautiful day for this hike which Shawn and I did at a very fast pace for this old guy. Shawn would have done it even faster if it were not for me.