Summit makes a great self climber I do love mine. Another lighter option is a tree saddle. My saddle set up weighs less than 6 lbs can be sat in comfortably for hours, fits inside any day pack, is self climbing, is silent while ascending /descending. Pretty much a run and gunners dream.
I will add if you get the summit get a proper belt/ shoulder strap set up packing it. Your body will thank you
I use a system designed for packing a water sprayer. Makes hauling the thing a breeze compared to the supplied shoulder straps.
https://www.amazon.ca/dp/B01MY1YLJZ/..._QO6VFbSAH6P88