There is a type 6 mass (the largest D071200) on the +Y face of the ISI wall in HAM5.  And it is not coming off.  See the photo and know that the large nozzle heading toward the OMC tube is too close to let the mass clear the four pins on which it hangs.  A type 5 mass (~half the thickness of a 6) should clear but not the T06.  We should probably avoid doing this in the future, if we have a chance.