Where did I say anything about a tricky bit? All I implied was make sure you're using a BIG ENOUGH bit. My other suggestion being using some kind of impact driver which would help apply enough torque in a manner that sould help prevent you from screwing the head up.
My last suggestion about contacting the manufacturer was probably the best advice as they would know exactly what adhesive is used, and the manner in which it was applied. They MIGHT also have some experience doing this... maybe...
just maybe...