I have gone ahead and ordered Alpha leashes and collars. In addition, I have ordered very narrow round/rolled leather collars (both choke and buckle) for her as well. This will cover daily use, obedience training and conformation.
Thank you for your recommendations, everyone. It really helped.
Sabra - female GSD - born April 30, 2012
Sargeant - rescued senior GSD male/foster failure - approximately ten years old (August 2013)
Max - rescued GSD - Dec 22, 2010 to March 7, 2012 - at the bridge
Sable - rescued GSD - at the bridge