I had a leg come up during the first attempt, and they had to redo my baptism. I cannot see what the whole point was, aside to waste more of my time just because a leg came up (it is supposed to be a symbol anyways, and I am sure my leg was submerged at one point and came up less than a second later).
Yes, they were successful the second time. I was totally submerged long enough to be technically valid. Yet, in spite of their superstition of a person that was not fully submerged going apostate, that didn't stop me from turning apostate (perhaps, if they would have made sure I was immersed with the opposite sex with as much insistence as they were on my being immersed in that pool, that might have worked).