Achilleas,
I was able to get your modifications to gr-trellis working in my
original application. Thanks again for the changes.
It took me a bit to figure out how to include bit-stuffing and
unstuffing blocks into the gnuradio framework. Each block has an
input rate that is different from the output rate, and is not
constant. I am still not convinced that I have it right but it seems
to work.
I will take a look at your SISO examples when I get some time.
Tim