I've been working on marked retrieves with my dog. She does well with bumpers out to ~20-30yds, in short grass or thicker cover, water retrieves she'll do as far I can chuck 'em. She'll also do doubles in any kind of cover. I've been throwing singles farther in the short grass trying to increase her range. I try doing it by incrementally increasing the distance. Some she picks right up others she runs by and can't find. At times I can't tell if she can't find it or if she's just jerking around and I chalk that up to immaturity. When she can't find them I call her over to the area so she can find it, rather than leading her right to it. When she sees it she pounces on it and we go back to where I released her from. SO, is this like learning to hit a baseball or ride a bike in that you just have to do it and with time she'll figure it out or is there a way I can give her some "training wheels" on the longer retreives?

Thanks for any suggestions.

-Matt