I'm not a Corn Master, but I have one......
He always eats when its time, He prefers being out in the living room at people temperatures (my house is 73 in the winter)
He does have a heat mat I keep set at 80-82.
Mine was a rescue, so as far as I know he's (not confirmed), appx 4-5 years old and appx 4.5 feet long or so. He lays doubled up in his enclosure and can almost touch end to end and the enclosure is 3' wide.
Quite the difference compared to my BP's, A lot easier to care for
He may be "bitey" because he's hungry?? I know when I first got mine he did a LOT of tail rattling and such, but he got over it quickly with a little handling.