Hello. I'm new to saddle hunting, been doing a lot of reading and video watching. I'm going to give SRT a try for ascending. I Just purchased a CT Quick Roll Hand Ascender and noticed it is marked for 8-13mm and 10-13mm ropes. From what I can see, it's certified for 8-13mm rope for EN 567 and for 10-13mm rope for EN 12841. Conservatively, I purchased some 11mm rope to fit within both ranges, but my mad rock safeguard doesn't seem to work well with the 11mm rope. I've played a little bit with 9mm rope and both the Quick Roll and Safeguard both seem to work Ok. Much better rappelling with the 9mm rope compared to the 11mm. I've only played around a few feet off the ground. I was curious, practically speaking, if the Quick Roll was commonly being used for saddle hunting with a 9mm rope? If not, I may try a 10mm rope or try a grigri as I've heard it'll be a bit smoother on a thicker rope.