This is a baking blog, and not for hamburger patties, but still, a few tips and tricks:
Search online for grill recipes for hamburger patties and enjoy a hamburger as it was meant to be. Hamburger patties are to be grilled short, on a very hot grill.
Preparing hamburgers on your Weber or Char-Broil gas grill is called “grilling”. BBQ’ing is what you do with large pieces of meat for hours on end. There is a significant difference. Ask those from Louisiana or Texas, for instance.
Resist the urge to press down on the patties as they are on the grill. It sounds really good, but you're actually pushing the juices out of the burger.
You don't need perfectly shaped and compressed patties. Actually, ragged edges give more surface to char and caramelize, providing more flavor.
Cut open the buns and smear a little bit of butter on the inside of top and bottom, and then put them on the grill. Wait long enough for some charring lines of the grill grates: the result is delicious
A good hamburger is comfort food: do not shy away from overloading your burger, with glazed or grilled onion rings, tomato, lettuce, cheese and a variety of sauces. Paper napkins have been invented purely for grilling soirees.
These buns are specifically designed to deal with overly juicy, over-loaded hamburgers. They will fall apart at a certain point, but they will hold up longer than either store-bought or fresh made regular, white rolls.