Ed - oh how I miss the days of training in shorts and a tank top! I'll have to wait 6 months!

Solid work from you and lucas here. He's clear and stable. I really like how naturally you move within your training sessions, too.

You 'pulled' him a little at 1:12 (front foot came off the ground) but you can work on different pictures for him as you continue to work this. 

I'd say you're ready to add the focus (to face) training to this sit stay! Onward to clockwork game!