Move if need be.
I have noticed in Soldat Climbing maps that if you miss a jump you have a second chance to regain stamina and successfully complete the jump.
As shown
here that you have missed this poly in your jump. But, the thing I have noticed, shown
here you can flip out of the side of it and successfully land it. I have been using this tactic on many maps, so I urge map makers to avoid the square form.