Just for phun and more coin flips...
A BLBC
MGNKK
0 0 0 0 0
1 0 ? 1 ?
1 0 ? 1 ?
0 1 ? 0 ?
0 0 0 0 0
1 1 1 1 1
1 1 1 1 1
0 1 ? 0 ?
0 0 0 0 0
1 1 1 1 1
1 0 ? 1 ?
0 0 0 0 0
Bob gets;
0110 0110 0110 or 666.
Casual listener gets:
0??? 011? 01?0 or nothing again...
7/12ths garbage this time.
Of course, if Bob sends the same message to Carl, and Carl send the same message to David, and David sends it on to Edward, the casual listener will have a pretty good handle on exactly what was said.
HALF garbage this time.
That does it, I’m going to bed!