I guess I can update this....
I trained Bertie this evening - our usual training walking next to me with attention, halt-sits when I stopped walking, scoot sits, treat toss comes, and even scoot fronts. I figure with my issues with Jacks having a problem with his crooked-butt fronts, it's never too soon to start training scoot fronts.
And we finished up by doing touches to a target clipped to a baby gate. I even got him to do a touch from 2 feet away. He's just delicious!
And that was supposed to be it for him this evening.
I trained fronts and drops with Jacks and then took him downstairs to practice high jumps.
At first I had Bertie loose, but because he knows what training means (FOOD!), he's underfoot and velcro and competing for heel and front position. He knocked the jump over twice (paw slapped it right in front of Jacks!) and that was the point where the kid got to hang out by himself in our computer room.
Jacks' jumps were tentative at first (he had the jump DROP right in front of him thanks to baby bro), but as soon as the dumbbell came out, he was a very happy boy. Retrieved nicely each time, right over the jump. I bumped it up to 22" and worked on treat toss jumps since we haven't done anything jumpwise in a week. Again he did awesome.
So put the jump away and practiced heeling - with the highly distractive squawling from inside the computer room (Bert doesn't bark, but will howl and make bear noises when unhappy). Jacks feels so HUGE compared to Bertie! Especially his head! I love him so much!
I did a few more drops and then let Bertie out since there was nothing for him to knock over and I knew the "competition" would get Jacks rushing a bit. Jacks did very nice drops. I worked on my "I really mean it!" hand signal.
Then I put Jacks in stays once more to work on retrieves with Bertie.... <- The unique experience of training a 12 week old puppy is that right in the middle of doing something, he will suddenly stop and run up to his potty door with the message he had to go out NOW. We finished up the retrieves, did some with Jacks.... and then on a whim I pulled out Jacks wooden dumbbell to see what Bertie would do.
I praised/marked every time he reached up to put his mouth on the bit - and released him immediately. And I'm wondering if this is a combination of the dumbbell being lighter and the bit narrower, but I don't remember Jacks offering "take" that readily.
Jacks was watching us from where he was practicing sit stays, so I released him and did a few take/holds with him. And Jacks worked his heart out to do his holds. No bobbling in his mouth, no hinge jaw holds....
And that was about it.
So we did our Monday night training, even though classes don't resume for another 3 weeks or so....