1. (most important step - they will NOT be good if you skip) Trim goose breasts. Remove all silverskin. This includes under the tenders - you can see those cooking separately in the pic above. If there is a seam of silverskin at the top lobe of the breast, it should also be removed.
2. BBQ Rub - this is ratio based, make as much as you think you need. 1 TBSP coarse/kosher salt; 2 TSP curry powder; 1 TSP Onion Powder; 1 TSP garlic powder; cracked black pepper to taste. Apply as you would any BBQ rub.
3. Mop Sauce - this is ratio based also. 1 cup apple cider vinegar + 2 TBSP red wine vinegar; 1/4 cup brown sugar; 1/4 cup ketchup; 2 tbsp yellow mustard; 2 tbsp worchestershire sauce. Whisk until combined, should be very runny.
4. Pre-heat smoker to 250F or (for 3 burner gas grill) turn 2 burners on med-hi and one burner on low. Fill a water pan with 1/2 can of lite beer and a sliced onion.
5. Grill meat on hot section of grill until you get grill marks (about 3-5 minutes); Flip and apply mop sauce; After 3-5 minutes, flip and move to top rack (gas) or cooler section of grill and apply mop sauce. There should be a water pan under them at this point.
6. Flip and rotate 45 degrees (to get grid marks

). The mop sauce on this side should now be gelled - apply more mop sauce. After 3-5 minutes, flip and rotate/apply mop sauce.
7. Cook until desired doneness - I aim for a small amount of pink in the center. I have never temped them but I assume it's probably about 140F in the thickest part.
8. I like to slice them across the grain in 1/8" strips - this helps to find any steel shot that might be hiding inside.
Enjoy...