This is a good question. I'm not sure the answer.
From my own experience with Rumble...we have recently started some dumbbell retrieves. It's been interesting to see how 'different' he retrieves this item than say a ball or a disc. I have had a few training issues arise during the dumbbell training:
-he doesn't carry it in the middle - we are working on this...
-he has a REALLY hard time sitting/staying in heel while I toss it, b/c he is so used to instantly going out to retrieve from our Chuck-it games, from frisbee, and also, I think b/c in flyball, while the object is away from us already (ball loaded in the box), he is HELD back while on the line, versus in a sit-stay. Holding back really builds that drive to go forward, I think.
-he also wants to drop things readily when he gets close to me, b/c that is what he has been heavily rewarded for
-I may not be explaining all of our bumps in dumbbell retrieving, might be easier to 'see them.'
this was session one:
http://www.youtube.com/watch?v=yW0ob75ho9Qsecond session:
http://www.youtube.com/watch?v=9NqYo5at ... re=relatedI tried to "Rumble" up the game for him in the second vid, b/c he really likes to tug and I thought maybe adding some play in there would be rewarding for him. When I watch these now, I feel like I'm probably trying to work on too many separate behaviors at once....
Always open to input - it helps when other eyes see the sessions.
Andrea