"Anonymous. I don't have the ISTD book. Or Guy Howard's."
You really should get them, as it would do a lot to clear up some of your misreadings of Moore's book.
"You might copy exactly what it says from the book that you have."
Already done for you - TWICE. See the messages of earlier today and yesterday.
"I have been told by a competing highly placed International that there is no turn if CBMP is being applied.I was told not to curve it even slightly. It is straight. It is in CBMP intil the end of the step."
This is true when CBMP is used on its own.
And it is true that CBM is not used to CREATE a CBMP placement of the moving foot.
However there are numerous situations where CBM and CBMP occur on the same step. Failing to understand the existence of these has been a persistent problem of yours for a couple years now, and we've been over it many times in the past. To take the most basic example, a natural turn commenced outside partner will have CBM and also step into CBMP.
Perhaps the key to understanding these is that the CBMP is set up by the conditions before the start of the step. Regardless if you then choose to dance a figure that has CBM or one that doesn't, it has already been pre-deteremined that the first step will land in CBMP either way.
The case where the CBMP coincides with not just CBM, but actual turn on the first step is a bit more unusual, but the weave from promenade is a good example. In this case there is turn on step one, but the man will not have CBM since the turn is in the opposite direction from the sort that could be called CBM. His partner will of course have CBM.
You should pay carefully attention though to the fact that neither CBM (which is body rotation) nor "turn" (which is foot rotation) imply "curve". Curve can only occur when the direction of travel changes, and the diagrams will clearly show that in these cases it does not change until later in the figure, despite the turn on step 1.
"If there was a turn on step one in Promenade it wouldn't be in CBMP would it."
No, it still would be CBMP, because ALL PROMENADE STEPS OF THE INSIDE LEG ARE INTO CBMP. Regardless if there is or isn't turn. I'd refer you again to the quoted passage of the ISTD book, or the digram in Moore, which both specify 1/8 turn on the first step, and that the first step goes into CBMP.
Will you ever learn?