You can use a normal collar the way he uses that one...you just have to hike it around the top of his neck towards his head and keep the leash upright the whole time....worked like a charm with my pup....he wont walk in front of me (my dad spoiled him though.... ;p)

you might want to start training him with some kind of head collar on him...or on a leash, what I did with my puppy was step on the leash with enough leeway to sit and lay down comfortable but not enough to jump....you might also want to enlist the help of a big strong guy.

Another thing that is very important to remember when you are working with the big dogs is that you remain calm and in control....and its alot easier to control a big dog when you have taken them outside for a good hour of running or so until they are pooped out (if that doesnt do it add a weighted backpack)....if they dont have the energy to jump they are much more lilley to listen and less likley to do anything that may hurt you.

Also, find out what drives him...he may or may not be food driven...often times dogs with that much energy are people driven rather than food driven...meaning they would rather have attention than a treat....in these cases you need to ignore the dog when they are being silly....generally keeping your back turned to them will work....he should get the idea that when he jumps he looses your attention, and he prolly wont like it much (he may display an extinction burst before hand though...the jumping will get worse for a short bit before he realizes it doesnt work....but give it time it will prolly work.)

I am working on a dog training cert., so if you have any other questions lemme know and I'll go digging through my books and see what I can find.

hope that helps

- Ceph