I guess I've always taken my ability to climb a rope for granted. I wasn't aware there was a rope climbing "progression" until I saw some x-fitters doing one.
I'd recommend just developing a stronger upper back via chins, pullups, various rows, and the dead lift and just using rope climbs as a fun supplemental movement for grip and muscular endurance.
I'm not knocking them at all. I do them from time to time instead of a row variation. I love climbing up and down the rope. However I'd recommend just getting strong enough using methods with clearer metrics for progress as opposed to spending your time dicking around with the rope itself trying to figure out how to get up it.
If you develop a powerful upper back it won't be an issue.
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