Step 1: Lightly brush the lamb chops on both sides with olive oil. Season them very generously on both sides with salt and pepper and the garlic and rosemary, if desired.
Step 2: Set up the grill for direct grilling and preheat it to high. If you are using a charcoal grill and want to use logs, place them on the coals.
Step 3: When ready to cook, if you are using a charcoal grill and wood chips or chunks, toss them on the coals. If you are using a gas grill, add the wood chips or chunks to the smoker box or place them in a smoker pouch under the grate. Brush and oil the grill grate. Arrange the lamb chops on the hot grate and grill them until done to taste, 4 to 6 minutes per side for medium-rare. Use the poke test to check for doneness.
Step 4: Transfer the grilled chops to a platter or plates. If desired, drizzle a little more olive oil over the chops and serve them with lemon wedges.