Any Ibanez Rosewood board I've ever had has been dryer than
@la szum's <insert joke 'object' here> after Thursday night band practice and riding home on his Harley with his mouth open!
A different/odd subspecies? An extreme drying process? Aliens? All of these?!
There's only so much you can do, and you definitely don't want any oily stuff soaking in there for long. I generally start at 1 and come back and wipe dry, any longer is a risk. Rumors/talk I've always heard said there's not a whole lot you can reallllly do to put moisture in Rosewood once it's gone.
@Eagle surely would be the expert here.