The correct answer to the L4 Helicopter Tosses quiz is both are Legal in Level 4. The part of the rule bolded below makes people question where the catchers need to be positioned.
…must be caught by at least 3 catchers, one of which is positioned at head and shoulder area of the top.
The official interpretation is both the base in blue and the base in yellow cover this requirement by being positioned at or above the waist of the top person and catching with one of their hands or arms above her waist.
This ruling and explanation are based on the 2016-17 version of the rules dated August 31, 2016.