Just as an aside, if anyone thinks the 40 mb is too large for this object, the specularity map is mostly redundant, so you can delete it if you want. You may also want to delete the reference in the objects shader so you don't get errors. If you do this, then you should also set the object's reflectivity to zero or near zero to avoid the saran wrap plastic look that the object will have with reflectivity set to 1.