This is a video of my Cosmo pup 1 1/2yo just running a straight blind where we work on lining. We do 2 other blinds along that tree line. Like gdgnyc, before he is allowed to run he has to come out of the truck quietly. No noise, stay by my side and heel. All of which he did and quietly!! He is just itching to go!!!every minute. Sometimes we don't get too far, depends on him! All good today!