Dear quickstep,
I do agree with that to know and to do correct basic is much more harder than figure or variation itself because of that this most important part lack of full figure in book or showed by coach. To observe Marcus instructional clips and learned with Tony ( 7th on the world now )( only one lesson with him now, but will be more after I did well as he said completely ), I have some points as follows: 1. the elbows are not level with the shoulders, they are slightly lower , and forward, outward, man's left hand levels with lady's nose and keeps in midway between the parnership, arms fix with torso, man's right forearm 7-10cm above his wrist support lady left arm from her left posterior axillar line, this is very important for leading and beautiful, relaxed , big volume frame, lady feels very comfortable for bigger room and stable balance , and necessary extension from her supporting foot, couples obtain larger upper spaces also .
( unfortunately, such chair is too expensive . most of chairs are rigid ,and small,unflexible for the figure needed more room.), man's right hand is UNDER ( not on )lady left shoulder blade with light touching only ( I don't want to be lifted, or have a sense of dropping in the well.)
You wrote the neck tie hold on man's right hand for required angle. when right side to right side connection, lady left armpit hight ( posterior axillar line )has set the wrist position.
finger tips touching on the chest bone with nipples line underneath the hands, then oper the upper limbs , both hands facing each other may be what we want. Lady upper limbs forward , slightly round and upward , both shoulders back and down, left hand places on man's arm ( yes, more outside of man's upper arm is more natural than book said, top female dancers put their left arm outside the man's upper arm with fingers (excepts with the thumb ) closed. When I did like that , my coach watched and said nothing till now. I knew he preferred I did it in common way , but I hated .)Such most perfectest ( natural and very relaxed ) holding can be noted in the top seven in the world commonly. They really keep their arms parallel to the floor just like holding a tray with glasses ,upper part is a reaction from the ankles and knees. no pull nor push. ).
ylchen