I cook spares. Done BBs a few times but were never quite liked how they turned out. Maybe because I've always done spares. Who knows.
I like the spares better because they tend to be meatier and bigger than BBs. I also don't cut spares down to STL cut. I trim up any hard fat but thats about it. Plus I LOVE rib tips! They are a nice snack!
18.5" OTS, 22.5" OTG, CB Silver(Rip), Vintage Coleman Bullet, Pit Barrel, UDS