Using hot mitts, carefully (be careful not to touch the hot coals, rack, barbecue kettle or other hot surfaces) put the "hinged cooking grate" in the BBQ.
When putting the hinged cooking grate in the BBQ, try to do it gently so not to bump, move or disturb the briquets so the very light dust on them doesn't get into the dripping pan.
Transfer the turkey from the platter onto the cooking grate and center the turkey right over the pan that will collect the drippings.
Put the lid on the BBQ with the vent on top of the lid open.
ADDING THE REGULAR MESQUITE CHARCOAL DURING THE COOKING PROCESS - Every hour, (starting from when the initial coals were added), using a long handled 2-pronged cooking fork...open each side of the hinged cooking grate (charcoal rails) and carefully (be careful not to touch the hot coals, rack, barbecue kettle or other hot surfaces) add 10 regular mesquite coals to each side of the charcoal rails. (DO NOT USE the Match Light coals).
FOR THE FIRST ADDITION OF MESQUITE BRIQUETS - ABOUT 15 MINUTES AFTER PUTTING THE TURKEY ON THE GRILL (this timing assumes that the turkey was put on the grill 45 minutes after lighting the briquets which would equal a total of 1 hour after the coals were initially lit), take off the lid, and using the cooking fork, open the hinged cooking grates, and carefully add 10 regular mesquite coals to each side (be careful not to touch the hot coals, rack, barbecue kettle or other hot surfaces).
Then put the lid back on (with the vent open).
Continue to use a cooking fork to open and close each side of the hinged cooking grates and carefully add 10 regular mesquite coals (DO NOT USE the Match Light coals).
If the turkey is getting too brown on the top during the cooking process, put a piece of foil (just large enough to cover the brown area) on the top of the turkey.
Basting the Turkey - Every ½ hour or so, use a bulb-type baster to transfer the liquid from the cavity of the turkey, to the top of the turkey (this not only adds to the beautiful golden color of the turkey but will allow the delicious juice to drip into the gravy-drippings pan that's sitting on a rack under the turkey).
This is not required but if you happen to have a citrus tree in your patio or yard, carefully drop a few green leaves between the spaces on the grill on to the coals during the last hour for added flavor.