Unless Kustom King ensured me that they checked it with a reliable moisture meter, and told me exactly what percentage of moisture was in the stave, I wouldn't work on it without allowing it at least a few weeks in the drying box.
NO bow should develop 1 1/2" of 'deflex' or set simply by floor tillering. Is there a natural hump there coming out of the fade, or something?
In the absence of your own moisture meter, if you hold the stave by the handle and tap the bottom limb on a cement floor, straight down, it should 'ring' somewhat like a tuning fork if it's dry. It will make a dull, mushy 'thud' if it's not.