Hi. I know you keep talking about V2 and Version 4 profiles.
I had similar problems everything worked with aperture but not the adobe products. I surfed the net found other profiles for testing and some worked. They all had one thing in common...
ICC profiles 2.0 worked while all the profiles that were 2.4 did not.
really weird too all the 2.0 were colorvision/datacolor all the others I will not mention the company.....
I too use a 3800 printer Adobe products work, aperture works and have tried trial Lightroom4 it all works with
ICC 2.0 profiles.
there is an issue for some users
with older epson printer software and adobe that popped up when apple changed the colorsync flow in snow leopard...
Your problem may be different as all my issues were found in snow leopard. I have tested some 2.4 profiles with Lion and I still have some problems.
In the meantime I am happy DataColor printer profile user.....
best elo