I want to train my high-drive GSD for S&R. Would buy the Dogtra 280NCP work for my needs?

I have a high drive intact GSD that I am training for SAR. I have been working with him since he was 10 weeks old and I have most of your DVDs and I have followed them while raising my working pup. I recently purchased your E-collar training video and I wanted to purchase one. I was looking at the Dogtra 280NCP Platinum Electric Collar. Do you think this would work for my needs and would I need to order the longer contact points for a GSD? My dogs hair length looks exactly the same as your dogs in the video. My dog is 9 months old and I am going to buy the cinch-it collar for whatever e-collar I purchase. My dog will be searching in both rural and wilderness environments. People have looked at me in horror if I even mention getting him an E-collar. I just smile and tell them I want him to be safe, he could bolt away from me and run into traffic. I am looking at this as a safety item, all of our local and state law enforcement dog trainers swear by e-collars. I was also thinking of purchasing a fur saver collar but I do not understand how a fur saver differs from a choke collar. I have a nice leather flat collar and I use a nice prong collar with it most of the time. Would I need a fur saver or are they for a very very high drive dog only? I have bought numerous products from you and I have always been very happy with the quality and speed of shipping.

Thanks for your help and time,
Dale