I have the problem with my DA-50 also.
We have a slight downgrade to the runway from the pit area ... it will also quit on this "ramp".
I thought it might be my ignition module ... I'm on my third module with only 4 gallons of gas used.

Did anyone else experience rude people in the DA booth at Toledo.
The people I have spoken to when calling their plant have been nice and polite.
The people at their booth were snobs ... couldn't even get their attention, and when I did ... they were short and rude.