Toasty
Looking for that thing i just had in my hand...
Cranking the torsion bars doesn't change the spring rate of the bars themselves, so the ride quality won't change unless the suspension is lifted to the point where it's hitting the bump stops.
What it does do is "shorten" the progressive rate of the spring, the bar having a greater pre load forces the spring to act on the harder end of the spring rate. The springs do eventually die from this but it takes a lot, mine got to the point that cranked up max meant less than stock ride height and it happened mid trail. It was a rough ride out.