From what I see, you should reverse engineer that. Start in your neutral stance as if you did your walk up and are already surfing — now bend your knees and get low, place your hands down on bosu and step legs back, one at a time. Once you have done the reverse you can sort of figure out where you should be to actually do the walk up on the Bosu.
If you put your hands in that same position and tried to do that on flat land, you would not be able to accomplish this either.
Commented on How the heck to your get your foot on...
23 May 07:56
There is a video in the series that shows Clayton‘s hip and rib placement from the ground on the Bosu. I need a little bit of time to find it but I will let you know which one it is.