Almost one year later, one rolled ankle and not really putting in as much work as I should have, I managed to get both feet onto a 360 flip a couple of weeks ago after having a lengthy discussion with Silhouette about pre-loading/weight distribution/etc. I ate it when I got that one so it doesn't count. Too much jumping 'over there' and hoping the deck meets my feet. Silhouette suggested (among other things) that I don't 'jump over there' and jump straight up (just like Stevie does in that clip). One thing I noticed with Stevie's 360 flip is he doesn't pop or move his front leg until he's fully extended on the jump so that's the next thing to work on, the timing of the pop/scoop. There's a couple of other little things I noticed in Stevie's clip like the flat front foot, limiting the height of the front leg during the flip and the position/angle of the back foot before the pop, but I've definitely got to work on the timing first.