steve sarich, I always peel and de-vein before cooking direct at 375. About 3 1/2 minutes per side will generally cook 15 / 26 count just about perfect. I always marinade in Italian dressing, place 8 or 9 on each skewer. Brush a little melted butter on after turning or sprits with I can’t believe it’s not butter when you take them off. A squeeze of fresh lime is also great before serving them. A large will cook 10 skewers at a time, 80 t0 90 shrimp. Watch your smoke. Seafood like shrimp really do not need any smoke to complement their flavor. IMHO 6 / 12 count I use the same recipe just don’t put them on skewers. They fit the grate well but the ones in back will cook faster so watch for that. Good luck and enjoy. Popsicle