I did it this week. Faced with the choice of making ruts to finish the job or use the bucket to reach a high TIP climb to reach the limbs over the house. I was wearing a PETZL nov bad croll fast--which is fine for climbing (see cover of latest Arborist News). Just stay tied into the boom until the climbing system is set up and tied into. (I have a friction hitch and climging line all prerigged in a rope bag that make the transition fast and smooth) It was the easiest, fastest, safest most cost effective way to do this job. It feels good to get out of that bucket and move freely around in the tree, it also feels good to have a "free ride" to the TIP. The bucket is just used for the ascent and decent. The ground person turned off the bucket as the climbing was done and restarted it at after the climbing was complete. No one is ever going to wear two harnesses. I also find the sternal attachment point useful when riding the ball on the crane. After tying in above the ball with a FS and climging line, I use a lanyard to go from the hook to the sternal attachment point and cynch it up...its so comfortable you can just lay back an have a quick nap.