We have two Giant Schnauzers, one of which will just not walk nicely on leash, regardless of what we have tried. And we have tried just about every product and training technique out there. This dog wants to pull ahead, all the time. The only thing that works for us is the Gentle Leader body harness. We also tried the Halti head harness and the Gentle Leader head harness. Those head versions worked ok, but our dog liked to rub his head on anything and anyone who we encountered to try to get it off his face. Picture a 90lb animal trying to rub on your leg like a cat. Or scraping his head back...