Shaun,
You bet it is a lovely supercell and ranks as one of the top structures intercepted of all time accoding to some chasers!
We were not that far away from it actually and eveutally allowed it to pass over us as well though the storm was in a weakening phase at this time. What I suggested is Sam Barricklow who took these pictures (who was with our group until prior to this point) chose to stay back for whole structure shots and video - hence my post above about decision making.
As to the tornado, although we cannot confirm a tornado, some of the guys who were with us suggested they had seen a tornado whilst observing through the notch region (looking from the northeast). However, nothing can be confirmed and being a HP supercell, any tornadoes were likely rainwrapped. And unless you can confirm something, then you cannot suggest there was a tornado. However, the footage I have and same as Brad, shows some rapid rotation that is sufficient for tornadic spinups but again - looking from the south, we simply cannot confirm anything concrete.
Mike's viewpoint looks to be from the southeast and south. There is much less chance of observing a tornado from this perspective. I assume he was using a wide angle lens as well given the 'distant looking' though spectacular shots.
Regards,
Jimmy Deguara