Trim to the Compton Cut
A whole rack is ribs plus flap meat. Dry it off, lay it on a board with the narrow end pointing toward you and the rib tip on top. The rib-tip bone runs along the top edge; slide a sharp knife under its bottom edge, guide it across that bone, then cut toward the end until the bone has gone. Flip the slab, find the lean flap meat hanging off the centre of the back, and cut that off too.
The flap you cut off freezes, and it is what breakfast sausage is made of. Leave the membrane alone — pork ribs keep theirs.