when i worked as a machinist, i was the only person on my shift that could program a certain lathe that had axis. it was when i was at the top of my abillitys.
i hate riding them, but i used to machine components for their drive chain when i was a machinist.
yes when i was young i did all the time, but i think after i turned i got this weird fear of being so high up in the air. what about you?