Preheat a panini press over medium head. Alternatively, you and use a skillet on the stove over medium heat.
Cut hoagie in half. Spread both cut halves with roasted garlic aioli (about 1-2 tablespoons). On the bottom half, add 4 pickle slices. Cut Swiss cheese in half and place over the top of the pickles in a long strip. Top with sliced ham and sliced pork. Top with other half of the hoagie. Repeat with other 3 hoagies.
Add 1 tablespoon of butter to hot press or hot skillet. Add two sandwiches and close panini press and press down. Cook until cheese has melted, about 7-10 minutes. Remove and repeat with other 2 sandwiches. If using a skillet, add two sandwiches and press down with a heavy skillet. Cook for 5 minutes and then flip. Remove once the cheese has melted. Repeat with 2 other sandwiches.
Slice cooked sandwiches in half and serve immediately.