Looking for instructional on the 4-Point/Quadpod

Im looking for an instructional that covers the 4point/quadpod as a defensive position. Ive kind of used some wrestling videos from yt and some clips of ppl like jayrod using it to try and understand it but i feel like the position still isnt as clear to me and i leave too many openings. all instructionals ive found were on the attacking side on how to beat a 4-point.