Succulent slow cooker pulled pork

Succulent slow cooker pulled pork  

• 1.0 (2kg) pork shoulder (bone in)
• 250.0 mls beers
• 2.5 tbsps white sugar
• 2.0 tsps sea salt
• 0.5 tsp black pepper
• 1.5 tsps paprikas (ground)
• 0.5 tsp mustard
• 0.5 tsp onion powder
• 0.25 tsp garlic salt
• 0.25 tsp celery salt
• 0.25 tsp cinnamon (ground)
• 0.25 tsp ground ginger
• 0.25 tsp nutmeg
• 75.0 mls balsamic vinegar
• 350.0 mls beers
• 3.0 tbsps whisky
• 4.0 tbsps white sugar
• 1.0 tsp olive oil
• 175.0 g bbq sauce
• 10.0 burger buns (split)