More African hunters miss shot opportunities because of unfamiliarity with shooting off sticks than any other reason. We don't often use shooting sticks here stateside, so we're not used to them. For Africa, that's the only kind of practice that matters.
I too prefer 2 sticks, taking a step backwards and then leaning into the sticks to tighten things up.
80% of my shots were from 2 legged sticks and the balance were out of a blind, off hand or whatever.
