We just minded a 6yo lab for the weekend. Now Banjo is happy to work for treats, though I've often thought she sees them almost as another marker and my approval is kind of a stronger motivator. But anywho, treats do work with her.
But now I've seen REAL food drive. This lab doesn't eat her food, she hoovers it up! Finishes a full bowl in like 2 seconds.
Even though she is used to being walked off lead, she completely ignored me the first time I let her off outside. So I started at the basics and called her as she was already coming towards me and treated her. And ouch my fingers! I didn't have the time to teach her to take treats gently first and she was like a bloody piranha!
But it's always such a shame to see that owners don't really take advantage of a drive like that. She's well behaved and a lovely dog but I know that especially her female owner struggles to control her off leash, so tends to drive to 'safe' places to walk her only.
I only had time to get to the recall with no or very low distractions stage, but I know it wouldn't take long to get near perfect recall with this dog at all if you use food rewards.