Great question. The LOA program is bizarre; has to be based on what the Europeans insist on to employ a few hundred additional EASA drones.
RVSM training in 8 seconds:
Don't hand fly above 28,000 feet, always stay on your assigned altitude, and make sure your aircraft is RVSM certified.
It should be that simple.
Don't forget to reduce your rate of climb / descent to 1,000fpm or less for the last 1,000 ft prior to level-off....