It'll be great. Your first few sessions will be on a shorter lead and it will go slow, so should not be a problem. I have certified a few of my girls and have other owners who have titled at TD / TDX levels. A couple are SAR cert'd. The nice thing for you is it sounds like you'll have a good training group. I was hindered by the fact that I had few opportunities for others/ strangers to lay tracks and actually remember where they turned! :p