Two things that I've been told and/or read about torsion axles:

1. They provide a smoother ride and are better for critters.

2. Tires wear better (more evenly) with sprung axles.

Are either of those statements not true?

If you take the time it takes, it takes less time.
--Pat Parelli

American by birth; Alaskan by choice.
--ironbender