Hi David,
My favorite trick that gets everyone crowing for my spares is to do the following:
1) Night before I rub a sweet onion mustard on them and sprinkle them with my favorite rub and wrap them in plastic wrap and let em sit and soak up that good flavors. Next day I remove the plastic wrap before cooking them of course.
2) Them smoke them on the smoker until the meat temperature between the bones is 180-185 F.
3) I then remove them from the smoker, take the water bowl and middle section off and place one of the grills/grids right over the coals on the charcoal ring that should be still going.
4) I them go ahead and cut the ribs
5) I then place them on the grill and braise them a little more and baste them with my favorite sauce and get a hint of charredness on the tips
Men fight and women faint over these spares! Try it you may like that method!
PrestonD