All carved tops have the rear cavities routed first, then they're flipped and front surface CNC'd.
Also, tummy cut on a regular LP body can intersect with chambering/hollowing cuts already made in the base blank, additionally, LP's do not traditionally have tummy cuts, therefore the original arpature that applys suction to the body blank to hold it down on the CNC table most likely is made for the traditional cut. With CNC, you have to remember that each of the arpatures are made specific to the body and some of its idiosyncratic features.