I was reading the posts on the old style fuel tanks and the one about the owner who wanted an aircraft that could be LSA as needed for his daughter, and they got me thinking. What if you have a forced landing due to fuel contamination and do a bunch of damage, or worse. You knew the tanks could possibly come apart at some time due to autogas the former owner admitted to using. The Feds are going to say engine stoppage due to crap in the fuel, you tell them you sump everything every flight, and the insurance company checks out our forums about the tanks. Then what???