RE: Flameout problem
My fuel is filtered 4 times including the UAT before reaching the turbine. I too don't have a filter anywhere between tanks and engine.
I think it is even specified in my turbine user's manual (Wren). I never had any problem with this setup. Most jet heads at our field do the same.
Once a year I would take the tanks apart to clean the inside up... just in case,... but I never found anything.