To Keepitstraight
When I went through ATC training there was an old WW2 vintage link trainer set up and working, complete with motion and a licensed instructor. I logged about 20hr in it. Occasionally felt queasy during/after, but not to the point of stopping the sim. But usually felt totally disoriented for a minute or two upon completion. This was a brilliant ADF trainer; you could see the plot of where you flew, and how egg shaped the holding patterns were, drawn with pencil on a chart table mechanically linked to the beast. Took up a whole room, but in my opinion far superior to a laptop job.