This skill is legal for high school and below. In this video, the foot bracer has an additional spot on the double based prep. That spotter is not required because there is an additional spotter on the arm. The bracer on the foot can be in a double based prep with no spot, a single base shoulder stand with a spot, a double based thigh stand, or a shoulder straddle without a spot. If the foot connection is the only connection, then the bracer would have to be in a double based prep with a spot.
