One pointer he shared with me a few weeks ago was reviewing NTSB records for aircraft similar to ours. You can search accident and incident records by aircraft type, and apparently that's one of the things Don does in his spare time. He warned me that he was noticing a number of instances of engine-driven fuel pump failures in "our airplanes," and that there was an inflight procedure for keeping the engine running by using the hand-operated wobble pump. He had even located advice on how to get the fuel flow started in the event of an engine-driven pump failure. Looking back, I'd also noted several instances of nose-gear failures in "our airplanes" and as a result, Don had overhauled my nose gear during a recent annual. Not required, but a good preemptive measure.