Interesting experience there, ATC.
I have flown 60 SEPs transatlantic, mostly new from factory. On my ferries of new aircraft I almost always got problems, if any, before reaching the coast. New aircraft = double-edged sword ! Trim runaway once, and a couple of rough-running episodes are all that I can recall actually over the ocean, plus getting hit by lightning once.
Packed it in 5 years ago; reckoned I had got away with it long enough. Am 70 now and I will not be repeating it. Glad I did it though. But too many good guys out there, much younger, experienced too, finally did not make it …