Well, I could mount the 60x15 to the U6, but I would need to reverse it from its current orientation (as can be seen below). Currently it is oriented so that the 12P fans should be drawing air through it, but that air unfortunately is coming off of the toasty GTX. I would think that putting a fan there might be worse in that the intake of air would be closer still to the surface of that hot GTX. Thus my deciding to try to angle in some air with the spotcool.