I started rappelling down last year after climbing with sticks. Just for clarification I am 64 years young, use Skeletor sticks (also have Hawk and Lone Wolf originals with both sets have one step aiders on them). The reason I went to rappelling down is I use a multiple step aider with the Skeletors. I can get 6.5' to 7' with the first stick then I would just use the remaining 3 sticks to go on up. What I am currently doing is using the multi step aider with two or three sticks to get to between 15 and 20 foot. I don't like climbing down with an aider especially a move able aider so rappelling down was a natural choice for me. And by the way it is fun. I use a 9 mm rope from EWO with a figure 8 and swabitch hitch attached to my lineman belt loop for the auto block. Very easy to switch to the rappel rope while on my platform by using my linesman rope for safety. When I come down I actually just walk down the tree between steps, removing the steps as I come down. The rope, figure 8, carabiner and cord for the auto block hook up take up very little room and weight very little in my pack.
My method isn't for everyone but it works for me. Lots of good methods and various set ups to try, I'm sure you can find something that will work for you. By the way 2 skeleton sticks with the multiple step aider will get me to 14' placing my platform a foot higher is 15'. 3 sticks will easy get me to 20'. Three sticks, platform, rappel rope with accessories totals around 10 lbs, everything goes in my pack along with other needed items for the days hunt, carries like a dream compared to a climber or sticks and a hang on. I wear my saddle in--Latitude Method 2 panel.