Nigel, you go to great lengths to defend the wrong call. The ref made a basic mistake. period. It's not a big deal but there's no great formula for judging when an escape is earned. You can't give an escape to someone who hasn't earned neutral position. In the case of front headlock or 1/4 nelson for that matter, the O wrestler still has control regardless of his intent to score from that position. So if the O wrestler comes out front with a front headlock and then grabs an ankle and returns behing the D wrestler it's not one escape and two takedown. This is basic stuff. It should be called the same way every time. You could hit the O wrestler for stalling with the position, but the best call for the good ref especially in the tie breaker is a quick stalemate. Watch college refs and you'll see that call made consistently. The refs do have a tough job and do it well. But they do get paid a little and can take some constructive criticism.