That is helpful, thank you!
Mercy and I train 2, sometimes 3, small sessions a day (5 to 10 min). The above schedule (walk twice, train twice, and a ball/lure session) really does a great job of keeping her mellow and content. The only thing I am afraid of is causing joint damage from doing too much too early. I am a bit unsure of what constitutes too much activity for a young puppy.