lockdown in the gi is money. you just have to be really good at not giving up that farside underhook and getting to perfect double unders. cannot ever put enough emphasis on the constant battle for underhooks. stomp as mentioned before is a constant go to of mine mixed with flying kung fu's if they happen to get the underhook. jaws of life is always an option but sometimes against people whose entire goal is to eliminate space between their head and anything resembling a frame, it may not work out. obviously once you've got to a solid lockdown, you play your game or whatever you've drilled most/comfortable with. So many options that flow together and is actually a game that when really knowledgeable of, one can force this down opponents throats. I'm currently making it a point to use my open guard game and force people to close the distance right into my lockdown game which is actually stronger.