Mix mustard(s) and maple syrup together in a bowl. Set aside with pastry type brush for glazing later.

Season pork with salt & pepper. Grill over low heat on BBQ for about 30 minutes or until a thermometer registers 150F. At about 15 minutes start basting with your glaze. Continue to baste (and turn pork) every 5 minutes until pork is done. If you have leftover glaze discard. When done put your pork on a platter and tent it for at least 5-10 minutes before serving.