cdroge, read what I said again. I am talking about a left whisk, not a back whisk. There is no back whisk in the variation on p14 of Alex Moore's book.

You wanted a tip. I gave you one. There is no rise in a left whisk!

Sorry,it is a back whisk taken from a reverse turn that i start out from.

OK, I think we need more detail to be clear?

Which foot is crossed behind for the man in the whisk, and which way are you turning for the twist turn?

RF behind for whisk and twist to the right for man. You say there is no rise in the left whisk then are you saying there is no rise on any whisk?

No - whisks have different rise & fall.

Whisk & Back Whisk (for man): start to rise e/o 1 (Back whisk, NFR); Continue to rise on 2; Up on 3, lower e/o 3.

Left whisk is different. Guy Howard says "Due to there being no rise, steps 2 & 3 are placed on BOF with the H almost in contact with the floor, knees slightly flexed."

OK, that is what I thought.

Although you are stepping back into the whisk after 1-3 of a reverse, it is actually a left whisk, so my earlier suggestions apply.
After the twist turn you can step backwards into a back whisk which has the man's RF crossed behind.

CliveHarrison has already answered the rise & fall question.

"Although you are stepping back into the whisk after 1-3 of a reverse, it is actually a left whisk, so my earlier suggestions apply.
After the twist turn you can step backwards into a back whisk which has the man's RF crossed behind."

Let's get this disambiguated:

A LEFT whisk has the man's right foot crossed behind.

Both the normal whisk and the back whisk have his left foot crossed behind.

(The back whisk is basically an alternate beginning to the normal whisk, in that the man steps backwards on the first step rather than forwards)

The named LEFT whisk is not the mirror image of a normal whisk, but instead a line figure more related to the throwaway, contra check, etc. A leftwards whisk with rise that was the mirror image of an normal whisk would be something like the contra fallaway position used in some versions of the three fallaways.

Don't see the problem: the back whisk is danced after the twist turn - is anyone confusing left with back?

The more usual ending would be to dance an underturned outside spin after the twist turn, but a back whisk is OK too.

Sorry! my typo.

I wrote:
"After the twist turn you can step backwards into a back whisk which has the man's RF crossed behind."

That should, of course, have been LF crossed behind

No if you start with the RF then it will be the RF. A back whisk can start with either foot, anyway this is not getting anywhere or helping anyone so I shall move on.