Last night I pressed all the blocks and that *(%$** iron spat out black stuff (good thing I tested it on a piece of scrap fabric). But now I just don't trust it .....and if you recall, the blocks are white.
Also started on the separator rows and realized that the greenish fabric I had picked did not work. Had too much cool blue in it. So I rifled through all my greens - - - no success. Changed to a mottled blue in the perfect shade. I am hopeful (arr arr) that I will continue to git'r done.