Actually, this tree is a pretty good example. It is in hilly terrain and is situated amongst a bunch of white oaks. When the oaks have acorns, it is a hot spot. Last season I eased in there and set up on the backside of the tree from where i thought the deer would come from with 3 lone wolf sticks and an aider. This set up got me to about 17 feet to my ring of steps. Even though the tree trunk is wider than my body, I still got picked by a big wary doe as she came off the hill in the last 10 minutes of daylight. We were basically at eye level.
Fast forward to this season. The oaks were dropping again so I went in with my 2TC kit. This time I was able to get as high as I needed and not be limited by how many sticks I was toting. Everything but my bow fit in a medium sized backpack and weighed about 12 pounds less. I got up to about 28 feet to my ring of steps and got tucked into some great cover belonging to a nearby tree. No deer showed that evening, unfortunately.
Below is a picture taken from last year's hunt with the sticks and I have drawn in approximately where I was with 2TC. It makes a difference.
On these big trees, and basically all trees I 2TC, I don't go for the full leg wrap to the tree. I just put my right foot against the tree and keep my knee locked straight. This way tree diameter is not as critical.