My experience is that anyone I trained doesn't retain the information unless/until it really is the rubber hits the road. I worked with 2 different brothers for nearly 2 years on a system that was brand new to church meetinghouses, it was the first meetinghouse with the system. I trained them on/off for 2 years. They helped with broadcasts, setting up multiple rooms, we had a separate language in a specific room, etc.. Additionally I had everything labeled, I had a 4 or 5 page booklet describing each type of scenario we'd encountered over the 2 years with EXACT instructinos AND Visuals. When I was released, they told the Stake President they had no idea how it worked and the SP had the Church fly in their people to 'train' them on it. A week later, they came to me asking how to set something up, so I walked up, pulled out the pages stored right in the track on the panel, labeled SYSTEM INSTRUCTIONS (for when John's not here) and turned to the page they needed. I watched as they followed it and had everything work.
That SP later told me he'd asked whether they'd talked to me and both of them told him they had and that the problem they were having was different which is why the pulled the church in.
One of the very nice things is my first assignment after moving to Utah shortly after this incident, I was supporting a Stake Conference held at the Ogden Tabernacle that had the same system. The HC couldn't ever get it to work, and for 2 years tried their best, I walk in, click, click, click and bingo. sometimes it does help to have someone called that can do the things they're asked to do. Just because you 'like' technology doesn't mean you can hookup a sound system, it doesn't mean you understnad how to switch between different video and audio inputs and direct those inputs to multiple outputs, but dog gone, it was super fun for me.
So there you are. I'm just not sure how this works. Sometimes you just get your hands dirty and figure it out. I have found over the years, once-in-a-while someone does exactly what I've done, then the next person doesn't do anything or care, and you've lost your institutional knowledge. It's why I think there are some operational aspects of how we do things that should just never be relied on by someone in a calling that could just as easily be released in a month or two or in there for 4 years doing nothing.
“A long habit of not thinking a thing wrong, gives it a superficial appearance of being right, and raises at first a formidable outcry in defense of custom.”
― Thomas Paine, Common Sense
