Ignite charcoal in the Big Green Egg and heat to 150°C. If available, insert the ConvEGGtor, place the stainless steel grid on top, and set up the 2-piece grid attachment. Remove the chicken wings from the fridge, sprinkle with rub (store any remaining rub in a sealed container), and arrange the wings side by side on the grid. Add two small pieces of applewood to the glowing charcoal, place the basket with the wings in the Egg, close the lid, and smoke for about 60 minutes, maintaining the temperature at around 100°C as it drops. After 60 minutes, raise the temperature to 140°C and continue cooking for another 30 minutes. Brush the wings with BBQ sauce, increase the temperature to 180°C, and cook for an additional 30 minutes, brushing with sauce every 10 minutes. Remove the smoked chicken wings from the grid and serve on a platter.