thanks for your note....I think the advice I received was accurate...my body is VERY stiff. Both instructors made the point that they would be happy to jump with me again; my awareness was fine and I was in tune with what was going on, just that my body position was not good enough to be able to be stable in free fall.
I intend to start some yoga and will work on the flexibility issue. I have no complaint with the point that was made. I don't have a tunnel near me but will in the autumn I believe (construction going on now) (northern NJ).
Thanks again