John. It is interesting. The bit about the arms being in front of the body. Which has to move the farthest and the quickest. Its not your centre. At school as a child you probably made what they called a chain, or at the ice rink. The person at the start is hardly moving. The person on the outside is flying. Do natural laws change just because we are now dancing.The right side hand and forearm are going the farthest and to keep up is also going the quickest, and is in front at the beginning, and must be in the samer position at the end. Another way. Put your elbows behind the body. Do step two of a Reverse. The body arrived first didn't it. Now put the elbows just in front of the body,well.

We have not yet even touched the left side where the man's and ladies palm are flat onto each other with no gap at all between the palms. Thumbs slightly up man and lady for a better lead on the left side. Have a look at any of the IDSF finals. Not one didn't have the thumbs really protruding, or slightly protruding.