On Monday, August 4, 2014 2:21:37 PM UTC-5, Ramy wrote:
Before we can try to draw any conclusion we need more data of course.

Um, alternate approach. Let's not get "more data" because "more data" means more inflight crunching of gliders with the associated risk to the pilots.

:-)

Now, to get back to work installing power cords in all my gliders to be able to use my PF Portable in all of them...

Steve