I went to the USA and did a few hours in a PA28R-200 and some ground school.
For that, the Feds gave me both 'complex' and 'high performance' endorsements - your views on that would be gratefully received.
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You have been hoodwinked by the bureaucracy because it is disingenuous to try and pretend that a PA28R-200 is anywhere near complex or high performance.
Using that mindset what would a Lear Jet be?