I had a dream describing how you could intesify the big draw practise if doing it in a group of quite many people.
If you have people at the same level of practise in a row. Then in front of them another row of people that had reached a higher level in the practise. Then having alot of rows with people at different levels. When doing the big draw toghether the energy from the head should project into the sacrum of some of the people infront of you, shaping a bigger field of energy, and strengthening ewerybody in the group.