Sharon, I am not sure what is the point of this thread/discussion. I get it, you have rock solid stays which you are very proud of. What I would like to hear is your particular experience, what and how you came to this, what helped you, mistakes you made etc. So other people can possibly benefit and learn.
I am not worried for the start line stays because I know what this behavior entails and how to train it. We are on a different ladder at competitive sports. I doubt I will ever compete more than few times a year. And no agility run is more important than need to maintain criteria. As Toffee's Mom dubbed "demigod" SG has her DVD Crate Games where for $30 one can follow and learn pretty darn solid stays. I get it, trial environment brings few separate challenges, like being thoughtful in drive and being able to perform under stress. This is something we are working on. I particularly do not like the situation with my friend neighbor's dogs because my boys and them have escalated fence fighting to the high high level of arousal. So I would love to see same solid stay I have in agility at my friend's house. So far it has been difficult. But I am working on it. To me it is not about trust I place in my dog but it is all about my training abilities and knowledge I have how to deal with particular problem.