I've seen some severly injured dogs counted out while scratching and have heard some fools call them curs because the were counted out trying to get across.
How can you in good conscious count out a dog that is scratching.
Thats why I prefer Cajun Rules. In a nutshell rule #11 states that a dog must start across the moment the referee say release, (Hesitate and lose. Don't hesitate and continue). Simple as that.
http://www.sporting-dog.com/select-p...ajunrules.html