Are front rack isometric holds good for building the upper back in comparison to other exercises?

I've heard a lot of olympic weightlifters do this to get a stronger upper-back and get more comfortable in a front rack position with a heavy ass weight. My question is: Is this exercise comparable to more common dynamic upper-back exercises like cable rows pull-ups? Have any of you done this exercise for an extended period of time and gotten great results with it? With results I basically: mean did you gain strength and upper-back size with the exercise?

submitted by /u/Oguumash
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