ok, spent some time with the heads tonight. Got the cyan and magenta to open up and flow pretty decent, gonna let the heads soak overnight and see if the black and yellow will loosen up. Gonna shake em some more tomorrow in the u.s. Too. Picked up a brake bleed tool from harbor freight and bled the ink lines all the way up to the dampers, then syringed a cpl loads of ink thru and the ink appears to be usable...