Have struggled with bad knees. Bought some cheap knee pads from HF and they worked good. Went all in with Trophyline and upgraded to these. They are light, breathable, and stack together for easy packing. Highly recommend if you have bad knees or not.
Upon purchasing a quality saddle and ropes, wanted to go all in with ease of operation. These make one handed adjustments very easy. Practice, Practice, PRACTICE!!! Must order the Black Diamond Oval Carabiners for it to work, but it is a great add-on to your saddle system. Have one for my lineman rope and one for my tree tether. Highly recommend.
Works great. Allows one handed adjustment of tether / linemans