Preheat Smoker to 265 degrees
Trim excess fat off pork butt but leave thin layers on the bottom of the butt
Inject pork with apple juice then lightly cover with kosher salt
Add a generous amount of your favorite rub/seasoning all over pork butt
Fill a half pan 1/3 filled with water help keep smoker moist and place on lower rack
Place pork in smoker on indirect heat
Smoke the pork butt for approximately 4 hours or until the internal temperature of the pork butt is 160F
Remove the pork from the smoker and wrap in heavy duty aluminum
Pour ½ cup of apple juice into the foil with the pork butt and add a splash of BBQ sauce. Tightly wrap pork butt in foil
Place the pork butt on the smoker and cook until temperature reaches 202F
When pork butt reached temperature, remove from smoker and let rest for an hour in a temp controlled setting. An oven not in use or empty cooler works well
Unwrap the pork butt and drain about half the juice in a half pan
Place the pork butt back in the remaining juices and pull meat apart. You can use your hands or tongs. Meat should fall off easily
Place pulled pork on your favorite bun and lightly drizzle warm BBQ sauce over the sandwich