This is one of my favorite ways to make the butterfly guard sweep more powerful and deal with someone who is using base and agility to not get swept. Here’s the link to the fundamental butterfly guard sweep http://www.youtube.com/watch?v=3aH8aNK08ds and if you’re interested in the butterfly guard then you should. check out this playlist here in which I share many of my best tips and tricks for the position: https://www.youtube.com/watch?v=bPVTmG22ZxE&list=PLyknAhj6gPvJLUJ6sMrbqbUfItYgyNaCf