The majority of trees I climb and are available to climb where I hunt are small dia. I can't use a Summit stand on 90% of them..too small.
Also, I can't use my Lone Wolf Handclimber on the bigger size trees that I can the Summits.
What I used my LW many yrs ago hunting out of a lot of cypress trees in Fl. where they are really big at the bottom and taper smaller real fast, I got the XL belt for the bottom sectin and use regular size for top.
Around here on the small trees I swith the belts from top to bottom so I can run the large top belt all the way through one side rail channel and get it as small as needed. (Bottom section side rails have a bolt at the end and can't run it through) I'm hunting out of about a 8" dia tree this afternoon with it.