We use a similar technique, butt different..
I cut the ribs 2, 3, or 4 rib sections, depending on the crowd.
Here is the difference..
1st part:
put the ribs in a deep(4") glass baking dish,
top liberally with salt, pepper, garlic power,
add 1/2 inch water and cover tightly with foil,
bake in oven at 200 deg for four to five hours,
or until they are ready to fall off the bone.
The slow cooking renders out most of the fat, leaving nice lean meat on the bones. This can be accomplished a day or more head, and refrigerated until needed.
2nd part:
get the grill hot like you would for a steak, maybe 350 deg.
place bare ribs face down, warm until they start to crisp and spit.
flip ribs over and slather on your favorite BBQ sauce on the just cooked side,
after the bottom is spitting, flip them over and sauce up.
turn down heat or off, and let the sauce caramelize and get good and gummy..
Average 2-3 minutes per side, twice..
Bada Bing,, Serve to the hungry masses..
Dependoing on the volume of ribs, the 2nd phase can take 10 minutes for a couple racks for you & the misses, up to 20-30 for a crowd..
The biggest complaint I get is you can't pick up the ribs without the meat falling off,,, I can live with that..
By breaking up the process, the day of the party is a lot less work.. More often than not, I cook for the 2 of us, part 1 after dinner,, part 2 the next nite after work..
You can come home, grab your favorite cold libation, and have ribs in less than an hour..
Enjoy..