I've done some Yoga in the past, but I think climbing specific stretching and core workout is a much better use of time.
Hang-boarding is totally unnecessary to get you into the early 20s, I agree. Getting from low 20s to high 20s though, only climbing weekends, I think is more of a challenge. Doable without hangs, probably, but most weekend warriors that I have met at least, who climb in the high 20s, early 30s, do some kind of hang-boarding. |