CLP does equal center of lateral pressure (important for designing the rig/sails)
CB is the center of bouyancy, or the center of gravity of the water you displace.
After you put the deck on the hull, outfit it, fill it with provisions, stick a rig on it, etc, you can calculate the CG, center of gravity.
The vertical difference between the CG and CB is the righting moment. (also important for designing the rig/sails)
If you don't know the CG of the finished boat, you can do the righting moment test, where you get your three heaviest friends, have them stand on the rail, measure the list angle, weigh them and do the math.
(lbs total)*(distance from centerline to rail) / (degrees of list) = righting moment/degree
(This is an approximation, because the actual righting moment/degree is not linear, but this is probably close enough.)
There is more math to do.....but then you get into trig.....etc etc etc.
-km
aka, "sell out"
S/V Beyond the Sea
C&C 35 mkIII