the chips must be crunchy and fresh, and be consistently warm throughout. cheese should have an even coverage, and melted into the chips. alot of places use mozarella for some reason, which is a big downer for me. best to use a sharp cheddar, as it breaks up the meat, garlic etc the meat should be about 3mm thick, and moist. avoid places that use meat left in a bain marie, that meat is essentially steaming in there. and finally, the sauce. its completely up to you, but i prefer garlic with a little BBQ. the sweetness is nice, no chilli because that shit makes me shit like an animal (on the side of the road, in parks, on simons door step) let me know where you go. i might come out for one lol