Dave,

I have never checked to see if the UAT was full at the end of my flights so far. I will next time I fly. I do recall when I was defueling that I could see fuel in the top of the UAT.
I just wonder why nobody else has reported the problem. I thought when I was building the thing that the tank was in the wrong way. I had to get the plans out and check. Perhaps bruce can share his experiences. He has had more flights than all of us put together.

Regards