A work buddy of mine used to bring in some real meaty ribs to work a few times a year from his place in Texas.
These were awesome and were custom cut from his butcher friend.
Cook wise he would he would “par bake” (par-baque?) them at home and then finish them off on the job site.
Great tasting ribs and the cut looked different from what was available in our area.
3-2-1 ?
That is a 6 hour cook and doesn’t work for me the way I do my ribs
I do something like 2-1 with possibly another 10 or so minutes if I want to stiffen up their glaze on the grill.
I paper wrap them and maybe put them in the oven when they look right to me for an hour or so of “steam bake”.
I normally cook my ribs around 275.
I’d probably use the same temps on a meaty rib and just react to the way the meat is acting.
Can you post up a picture of the ribs?