Very good job, mate!
Thanks for your easy and precise instructions.
Just one tip you certainly already know, but my hard learned lessons push me to underline here: it's better not to check your six when you don't have enough energy to burn avoiding an attack from your six. In other words, do not wait to be at the summit of your perfectly executed yo-yo to watch your six. Check your ass is clean before you get there, when speed is yet on your side. Just my ten cents.
Engadin.