Well.... first, yall need to understand that you have to smoke on either mesquite or hickory wood. Nutn' else will do. Gotta have smoke. East Texas prefers hickory, West Texas prefers mesquite since nothing else will grow out here
Next: REAL Texas ribs are beef, not pork! Good beef ribs are about the size of a T-Rex rib: maybe 12 inches end to end, and perhaps an inch across each bone. They do use pork up north (of the Red River anyway!).
Third: marinate a LONG time, use vinegar, orange juice, beer, whatever you have sitting around. This is one time I do NOT recommend synthetic fluids. Overnight or longer is best.
Fourth: barbecue sauce does NOT contain any product known to the State of Texas to contain tomatoes. Very important! And this includes ketchup!
Fifth: smoke slow and long.. then a little longer. Baste with OJ, a little oil, maybe every hour or so. Keeps it moist and tender. I don't know what temps to use, but if you use a water smoker you shouldn't get too hot. Overnight is best.
Sixth: It's probably against CARB rules.. but soak your smoke wood in water and then put on your coals.. it makes mucho fumar if you know what I mean.
If it's done, it's tender enough to eat off the bone. You shouldn't need any bbq sauce on the side if they are done properly. Now, enjoy, preferably with a cold Lone Star or Shiner Bock!