What's not legit? What do you want to know? The rule book has specific instances where stalling should be called, but in most cases, the referee has to make a decision as to whether or not a wrestler is trying to improve his position and actively work on improving whether top, bottom or neutral. I have heard of a back-step takedown, but not a three-step back takedown and generally when someone backs straight out of the circle, he will get called for stalling. The wrestling rule book is thin because there is a high level of subjectivity to wrestling. Get in shape, out-work your opponent and make this a non-issue.