I can recall many happy experiences in my heli-life but I guess that one of my best feelings was when I graduated at Fort Eustis with my AMOC and test pilot course on CH 47 Chinook...
As an NCO in the Spanish Army I was lucky enough to be selected to be an Army Pilot but after a few years, there were no officers available with the required english proficiency level to take that course (AMOC/Test pilot) in the US Army so Battallion Commander had to relay on me and away I went. After the course, I happened to be, and still I might be, the only NCO that has ever taken that AMOC/Test pilot course on CH47 in the US Transportation School around the world. That made me really happy !!!
More that 40 years flying helos and stilllearning .... fly safe.