You can indeed hear you blood pumping. I had to wait for Alan to arrive last Friday to be shut in the chamber for the first time. I couldn't convince myself Ian, Mike or Tom would let me back out again! But you're right, Peter - the lack of reflection makes you catch your balance right away. We shut Bridgman and Tharkun in but I don't know if they stopped talking and heard the rush? They were getting an official explanation of what everything was there for.