My 8 mo YLM shows what I think is fair to good drive for scented paint roller and Wing on a String. (this is my first dog). In the house he retrieves both items well. I also have his remote sit then hide the item telling him to FIND. He gets excited and hunts/searchs well. However outside and with a EZ Rotational bumper he doesn't have the drive. I have tried the paint roller as well, but when tossed up in the air, out further he doesn't have the drive. He takes a couple steps then stops. If I run to it excitedly he races me and picks it up. I back up telling him to Come and praise him. Am I on the right track or not? Should I keep my g/f away from him. She plays fetch or Wing on a String to "tire" him out when I am at work. I am a 2nd shifter. Some suggestions are greatly apprechiated.