My spotted hides all day too (like my Ball python) and is normal as they're nocturnal. Spot likes hiding in his warm hide too - your rock stack sounds great - like the Retes stack that all monitors are supposed to love - means they can choose exactly what temp they like - where did you get your rock stack from? I'm having slight problems with my temps (stupid faunariums :( ) my hot side is 86 point something and the cool side is 73 point something. I read the best temps for these are 75 cool and 85 warm - think I'll try upping his temps.
We only got ours on Christmas Eve so are leaving him to rest and settle in so no feeding or holding yet :(