How to keep dogs in shape

I haven't on him

my other dog is faster .. and I've looked down and seen 25mph with him still going . This is exactly his problem though he thinks we're out there for him to run . He has more show dog in his line then I knew about and has great confirmation( I'm guessing .. not sure what show people look for ) but his instinct is no where near that of my other dog . He does find birds , but doesn't hold point .. just wants to run and bust them . he'd probably make a good finder holder or somethin haha the game plan is to run his pads off on wild birds till he decides he's had enough and points . Once he knows chasing is futile I think I'll break him or give him to my hunting buddy . not sure yet

They run like this on four wheeler or horseback .. but with the four wheeler they have a reference as to where I am because of the engine noise . When I run them on horseback I have to kind of sing to them so they know where I'm at .. it doesn't tell them to come in but rather stay out and keep moving forward . You won't see them until they stop on point .