How to get range on a dog?

i dont want to offend anyone by talking about walk hunting but it usually does knock range off dogs because the dog is having to focus on keeping up with the man walking. what i do wiith mine is like reuben said, stright from pen to dog box, then when i get to the woods i tie them up for collars and to take a crap, then load them in my dog box on my fourwheeler and ride til im ready to cast, when i cast i head them in the direction i want them to go by their collar, if they come back after a small loop dont let them stand around and play or you be petting on them, grab them by their collar again and send them another direction or either load them straight back in the box, standing around is the worst thing to let them do they will do that instead of going hunting. and when their gone dont leave from where you casted them from like ride to another feeder and look, wait on them to come back or get a track going and they will learn your not going to leave them, it takes time and just keep doing it and they will eventually learn when they get let go their suppose to be looking for a track not waiting on you to lead the way. good luck