I haven't used a top and bottom of the same stand in many years. I found a bottom that is near perfect and switch up tops. If it's the top that's wore out just buy some used stands you think you will like and try them out.
The bottom I use was made by Northstar called the tree cat archery, super light, folds flat, has a large base and adjustable with the squeeze of a lever. It uses a heavy duty belt with no teeth attached to a bungie. If you pull out the bungie side before climbing just squeeze the lever and the belt retracts. I cut a piece of ergo mat and tied it to the base with para cord. It does 2 things, make my feet movement silent and being black rubber, any sun causes it to heat up, keeps my feet warm.
I switch between a lonewolf hand climber and a summit top. If I want to hunt hard the LW which in itself is super light puts the top and bottom together at around 12 pounds and that's with the ergo mat. The LW isn't easy to climb with and the seat is just a rest like a truck bumper, but that's about all that's wrong with it, near perfect for those who are out there to hunt, great for bow hunting. The Summit top is much easier to climb with, a much better seat, but a lot noisier, bulkier to climb with and not easily adjustable. The teeth on a Summit are also too sharp, many people grind them down some so they don't bury themselves in the trunk every step up the tree. Usually take it during gun season
Mix it up, I think you'll be happier. If you do buy a new one and the base of the old is good give a mix a try.