AC compressor replaced, too much oil?

I recently replaced the compressor and dryer/receiver on my truck. A rep for the company that supplied the compressor said that it was not filled with oil but merely enough to wet the parts. When charging the system I installed five ounces of oil in combination with just under 2 pounds of refrigerant as recommended by the factory. After initially holding a vacuum and passing a leak test, about two days later I notice oil at one of the couplings. Long story short I replaced an O-ring and added about another ounce of oil just to be on the safe side. The system was cooling but just not like it once did so I started checking and rechecking everything including calling back the compressor supplier. The second time I called, the rep tells me the compressors are shipped fully oiled. If this is the case I may have 11 ounces of oil in a 5 ounce system. Short of taking each component off and flushing it with solvent is there any way I can remove the excess oil?