Didn't he say the trainer outputs 1:1?
I'm not sure that any curve is without the bounds of imagination. There were people who had problems with the way their gameplay went and Obs supplied a curve. Anyone can think of a curve. In the past, I messed around with all kinds of wacky curves trying to get a better turning turret in bf4, crazy curves.
Now that we "know" that strange curves can be and are most definitely useful, wouldn't it be cool if all those interested would take a few minutes from their gameplay, get on the test range, pull out your android, make a completely separate profile and tinker away with all kinds of funky stuff. Someone might just stumble onto something cool, like Obs says he did. Things can be and are stumbled onto everyday in every facet of life. Gaming and XIM are no different. Part of the beauty of the XIM is that we are given the tools to tune our gameplay to our needs, the only wall is ourselves.
Roads, work will set you free, is that the phrase associated with concentration camps.